侯鈞賀 Chiun-Ho Hou

Dr. ChiunHo Hou is currently an attending physician and assistant professor in the Department of Ophthalmology at National Taiwan University Hospital, specializing in cataract, refractive correction, contact lenses, laser myopia surgery, as well as the treatment of low vision and vision care for patients with disabilities. He holds an M.D. from National Taiwan University, a master’s degree in clinical medicine from Chang Gung University, and a Ph.D. in public health from National Yang Ming Chiao Tung University. He is presently acting as the secretary general of Ophthalmologic Society of Taiwan; the president of Taiwan Association for Visual Rehabilitation, and the council member of Taiwan Society of Cataract and Refractive Surgeon. Dr. Hou is actively involved in several government and research projects, particularly in the field of cataract; visual impairment prevention, and visual rehabilitation for people with special needs. He has published several studies on topics such as endophthalmitis, astigmatism, and the quality-of-life outcomes related to cataract surgery. Before joining NTUH, Dr. Hou gained extensive clinical experience as a resident and attending physician in the Department of Ophthalmology at Chang Gung Memorial Hospital, where he also served as a research fellow in the refraction division. His expertise in refraction; cataract; vison care for people with disabilities, and low vision made him a key figure in providing advanced medical care to patients.

Day 1 Saturday - 13 Dec 2025

Time Session
08:30
12:00
全方位白內障手術教育課程暨Wet Lab Lecture | Wet Lab Lecture Comprehensive Cataract Surgeons Teaching Courses
EN
  • Section 1: IIRST Comprehensive Cataract Surgeons Teaching Courses - Phaco Techniques
    Thomas KOHNENGermany Moderator Power and Precision: The New Era of Phacoemulsification TechnologyBridging Cornea and Lens: The Modern Role of Phakic IOLs in a Myopic WorldFrom Awareness to Action: Stepwise Learning to Manage Capsular Rupture During Cataract Surgery
    黃維仁 Wei-Jen HuangTaiwan Moderator
    林昌平 Chang-Ping LinTaiwan Moderator
    許桓誠 Huan-Chen HsuTaiwan Moderator
    吳佩昌 Pei-Chang WuTaiwan Moderator
  • Opening
    王一中 I-Jong WangTaiwan Speaker
    林鴻源 Bryan Hung-Yuan LinTaiwan Speaker
    Filomena RIBEIROPortugal Speaker Neuroadaptation in Premium IOL PatientsNeuroadaptation is a key determinant of visual success and satisfaction after implantation of premium intraocular lenses. This session will discuss how the brain adapts to new optical conditions created by simultaneous vision IOLs, integrating multiple focal points while minimising photic phenomena. Clinical data and patient-reported outcomes will illustrate the variability and time course of adaptation, highlighting the influence of IOL design and individual neural plasticity. Understanding and supporting neuroadaptation are essential to optimise outcomes and enhance patient experience with modern premium IOL technologies.ESCRS Multiformulas IOL Power Calculator AccuracyAccurate intraocular lens (IOL) power calculation remains a critical determinant of refractive outcomes following cataract surgery. The ESCRS IOL Calculator integrates modern formulas to improve prediction accuracy and support IOL selection across diverse biometric profiles. This lecture will review recent data assessing the performance of the ESCRS Calculator in comparison with individual formulas, focusing on its refractive predictability, consistency across axial lengths, and clinical usability. Results from validation studies and real-world datasets will be presented, highlighting the calculator’s strengths and limitations, as well as its role in optimising outcomes in standard and challenging eyes. The session will also address practical considerations for integration into clinical workflow and the ongoing evolution of formula combinations as biometry and lens technology continue to advance.
    Burkhard DickGermany Speaker ESCRS Cataract Guidelines RecommendationsThe ESCRS Cataract Guidelines represent a comprehensive and evidence-based framework designed to support cataract surgeons across Europe in delivering safe, effective, and consistent care. In this presentation, an overview of the most relevant recommendations will be provided as well as key updates based on the latest clinical evidence. Drawing from robust literature reviews and expert consensus, the ESCRS Guidelines cover the full patient journey: from preoperative assessment and biometry, to surgical technique, IOL selection, intraoperative considerations, and postoperative care. Emphasis will be placed on areas of evolving practice (SV IOL and infection prophylaxis). Background will be given on how the guideline development process was designed to ensure practical relevance while maintaining scientific rigor, and how implementation can be supported across diverse healthcare settings. The goal is not only to standardize best practices but also to allow flexibility where justified by patient needs or surgical complexity. This talk aims to provide attendees with clear, actionable insights from the ESCRS Cataract Guidelines that can enhance surgical outcomes and support continuous quality improvement in cataract care.IOL Exchange in the Premium IOL Era: Challenges and SolutionsThe rise of simultaneous vision intraocular lenses (SV IOLs), including multifocal, extended depth of focus, and toric designs, has significantly expanded visual outcomes in cataract and refractive surgery. However, this progress has been accompanied by an increase in the complexity and frequency of postoperative patient dissatisfaction, leading to a higher demand for IOL exchange in select cases. This presentation explores the unique challenges of IOL exchange in the era of SV IOL technologies. Key indications for explantation will be reviewed, including suboptimal visual quality, dysphotopsia, residual ametropia, and rotational instability. Emphasis will be placed on clinical decision-making, diagnostic precision, and the timing of intervention, particularly in light of evolving patient expectations. Surgical strategies for safe and effective explantation will be discussed. In addition, the importance of careful patient selection, preoperative counseling, and enhanced biometric planning as critical factors in reducing the need for IOL exchange will be highlighted. Emerging technologies that may support more accurate IOL selection and customization will also be briefly introduced. This talk aims to provide practical guidance for surgeons facing the growing demands of managing SV IOL complications and achieving optimal outcomes through safe exchange procedures.
    黃維仁 Wei-Jen HuangTaiwan Speaker
  • Divide and Conquer: Establishing a Stable Foundation for Beginners
    盧兆功 Chao-Kung LuTaiwan Speaker Divide and Conquer: Establishing a Stable Foundation for BeginnersThe divide and conquer technique is the fundamental method that every cataract surgeon begins their training with. The divide and conquer phacoemulsification technique involves several steps. First, a proper capsulorhexis and excellent hydrodissection are performed to ensure the nucleus can be rotated freely. Next, the surgeon creates a deep groove and then cracks the nucleus into four quadrants. Finally, the nucleus is emulsified and aspirated piece by piece. Pearls for this method include deeply debulking the nucleus before cracking, ensuring all pieces are broken up before removal to facilitate easier rotation and extraction, and having strategies for managing both soft and hard cataracts.
  • Stop and Chop: Bridging Classic Sculpting with Modern Chopping
    簡湘文 Hsiang-Wen ChianTaiwan Speaker Stop and Chop: Bridging Classic Sculpting with Modern ChoppingStop and Chop remains a cornerstone phacoemulsification technique that elegantly bridges the precision of classic sculpting with the efficiency of modern chopping. This 10-minute lecture demonstrates a streamlined, low-energy approach to nucleus management, emphasizing initial central sculpting to create a secure mechanical barrier, followed by controlled cracking and targeted chopping to minimize ultrasound energy and endothelial stress. Key steps include optimized trench depth, chopper positioning for safe lens rotation, and sequential quadrant emulsification with fluidic balance.
  • Chopping Strategies: Horizontal, Vertical, Prechop, and Beyond
    莊智鈞 Chih-Chun ChuangTaiwan Speaker Chopping Strategies: Horizontal, Vertical, Prechop, and BeyondThe "Phaco Chop" techniques—Horizontal, Vertical, and Prechop—are advanced surgical strategies used in phacoemulsification to fragment the eye's cloudy lens nucleus. The goal of all chop techniques is to reduce the amount of ultrasound energy and time needed for removal, which minimizes damage to the corneal endothelium and other ocular structures. Phaco Chop leads to significant surgical benefits including (1) Minimized Zonular Stress: By stabilizing the nucleus with the phaco tip and applying opposing forces centripetally, the stress transmitted to the delicate zonules is drastically reduced compared to the grooving required in the "Divide and Conquer" technique. (2) Reduced Phaco Power & Time: Replacing the need to sculpt trenches with mechanical cleavage saves ultrasound energy and shortens the overall procedure time. (3) Safety in Challenging Cases: Small Pupils: The technique keeps all major movements contained within the central 3–4 mm of the pupil, avoiding the need to work under a small iris. (4) Dense Cataracts: Vertical chop, in particular, can efficiently split hard, brunescent nuclei that would otherwise require excessive, damaging ultrasound energy. In short, Phaco Chop is an elegant solution in cataract surgery that leverages the physical properties of the lens (cleavage planes) to substitute energy-intensive destruction with controlled, mechanical fragmentation, resulting in a safer, faster, and less traumatic operation for the eye. Beyond the basic Horizontal and Vertical Phaco Chop techniques, various advanced and hybrid strategies have also evolved in cataract surgery to improve safety, efficiency, and adaptability for different cataract types and eye conditions.
  • Discussion
    Moderator
  • From Awareness to Action: Stepwise Learning to Manage Capsular Rupture During Cataract Surgery
    Thomas KOHNENGermany Speaker Power and Precision: The New Era of Phacoemulsification TechnologyBridging Cornea and Lens: The Modern Role of Phakic IOLs in a Myopic WorldFrom Awareness to Action: Stepwise Learning to Manage Capsular Rupture During Cataract Surgery
  • Management of Pediatric Posterior Polar Catarct
    姚克 Yao KeChina Speaker Adances in FLACS Cataract surgery in China has experienced a profound transformation, evolving from traditional practices to the implementation of advanced techniques like Femtosecond Laser-Assisted Cataract Surgery (FLACS). This lecture provides an overview of the recent clinical research in Mainland China, focusing on optimizing surgical workflows, refining patient selection criteria, and evaluating visual and refractive outcomes associated with FLACS. Data from these studies have contributed to evidence-based protocols that support the safe and effective implementation of laser-assisted cataract procedures across diverse clinical settings.
  • Beyond the Basics: International Master’s Tips for Accelerating Phaco Proficiency
    Panel Discussion
    Pannet PangputhipongThailand Speaker Phacoemulsification: Challenging and Interesting CasesPhacoemulsification in complex cases is always challenging. Situations such as hard nucleus, intumescent cataract, posterior polar cataract, loose zonule, or small pupil require special surgical techniques to overcome the difficulties. In some patients, multiple complexities may occur simultaneously, making the procedure extremely challenging—sometimes described as a surgeon’s nightmare. This presentation will highlight selected interesting cases and demonstrate strategies to manage them safely, guiding surgeons on how to navigate through these “war zone” scenarios with confidence.Challenges in Soft Nucleus: Don’t Drown in Shallow WaterPhacoemulsification in soft nuclei can be challenging if inappropriate techniques are used. The soft nature of the nucleus makes nuclear disassembly difficult. Chopping and rotation are not easily performed because the chopper tends to cut through the nuclear mass when cracking or rotational force is applied, without achieving satisfactory results. The phaco tip also cannot hold the nucleus firmly enough during chopping or pulling. “Stab Test” using a 27g. hydrodissection canular to determine the hardness of the nucleus before performing hydrodissection is essential, in order to choose the most appropriate phaco technique. Special techniques such as Hydro Subluxation + Aspiration, Hydro Subluxation + Flip & Chop, Half Bowl + Rim Aspiration, and Chip & Flip (I. Howard Fine) will be discussed, including phacodynamics for soft nuclei. When proper techniques are applied, surgery can be performed safely and effectively.
    Matteo PiovellaItaly Speaker Refractive cataract surgery to correct and eliminate presbyopia to achieve better vision in patients undergoing cataract surgerySynopsis Refractive cataract surgery is now replacing standard high-volume, low-cost cataract surgery with monofocal IOL implantation. The possibility is to correct refractive defects, myopia, hyperopia and astigmatism and overcome presbyopia limitations. It is necessary to change the preoperative patient procedures and manage Meibomian gland dysfunction in cataract patients. Normally three treatments should be applied: BlephEx (Alcon) to eliminate Demodex blepharitis Biofilm and to open glands duct LipiFlow (J&J) to get postoperative refractive emmetropia. In this course, we will review state-of-the-art knowledge on refractive cataract surgery in pursuing highly satisfactory uncorrected distance, intermediate and near vision. Routine dry eye management will be discussed. Advanced biometry, multiple shots and new procedures will be explained and demonstrated .The new technical model for the adoption of refractive cataract surgery: biometry evaporative dry eye pupil-dependent trifocal IOLsSynopsis PRESENTATION will certify as postoperative precise IOL power detection is based on quality of tear film to provide cornea smooth surface.Improvements . Multiple biometry exams are needed until refractive IOLs power stabilization Objective The MAPRY/clear oil protocol is based on consecutive session with three phisical treatments. First treatment applied is Blephex(LLC) to remove Demodex, Biofilm and to unclog excretory channels of the meibomian glands Second Treatment,LipiFlow (J&J),replaces occlusions of the MG warming the material responsible of MGD improving a solid sttatification into the liquid state easier to remove. ILux (Alcon)expels deeply from the meibomian glands the substances responsible for their obstruction. The MAPRY protocol is based on one session per month at least for 5 months, depending the grade and penetration ofhronic eyelids inflammation
    FAM Han BorSingapore Speaker Astigmatism with TK more Accurate for Toric Calculation?This presentation explores the impact of Total Keratometry (TK) on the calculation of toric intraocular lenses (IOLs), focusing on the role of posterior corneal astigmatism (PCA) in refractive outcomes. Drawing on large datasets and recent studies, it highlights that PCA is a significant factor in toric IOL planning, with traditional keratometry often leading to over-correction of with-the-rule (WTR) and under-correction of against-the-rule (ATR) astigmatism. The presentation reviews evidence showing that using measured PCA values, rather than predicted ones, improves the accuracy of postoperative astigmatism prediction, especially when the steep axis of PCA is non-vertical. Comparative analysis of various toric IOL formulas demonstrates that EVO formulas with measured PCA yield the smallest centroid errors and highest percentage of eyes within 0.50D of predicted astigmatism, particularly in cases with non-vertical PCA. The findings underscore the importance of incorporating TK and measured PCA into toric IOL calculations to optimise refractive outcomes for cataract patients.
  • Coffee Break
  • Section 2: ESCRS / IIRST Joint Education Conference
    Filomena RIBEIROPortugal Moderator Neuroadaptation in Premium IOL PatientsNeuroadaptation is a key determinant of visual success and satisfaction after implantation of premium intraocular lenses. This session will discuss how the brain adapts to new optical conditions created by simultaneous vision IOLs, integrating multiple focal points while minimising photic phenomena. Clinical data and patient-reported outcomes will illustrate the variability and time course of adaptation, highlighting the influence of IOL design and individual neural plasticity. Understanding and supporting neuroadaptation are essential to optimise outcomes and enhance patient experience with modern premium IOL technologies.ESCRS Multiformulas IOL Power Calculator AccuracyAccurate intraocular lens (IOL) power calculation remains a critical determinant of refractive outcomes following cataract surgery. The ESCRS IOL Calculator integrates modern formulas to improve prediction accuracy and support IOL selection across diverse biometric profiles. This lecture will review recent data assessing the performance of the ESCRS Calculator in comparison with individual formulas, focusing on its refractive predictability, consistency across axial lengths, and clinical usability. Results from validation studies and real-world datasets will be presented, highlighting the calculator’s strengths and limitations, as well as its role in optimising outcomes in standard and challenging eyes. The session will also address practical considerations for integration into clinical workflow and the ongoing evolution of formula combinations as biometry and lens technology continue to advance.
    Burkhard DickGermany Moderator ESCRS Cataract Guidelines RecommendationsThe ESCRS Cataract Guidelines represent a comprehensive and evidence-based framework designed to support cataract surgeons across Europe in delivering safe, effective, and consistent care. In this presentation, an overview of the most relevant recommendations will be provided as well as key updates based on the latest clinical evidence. Drawing from robust literature reviews and expert consensus, the ESCRS Guidelines cover the full patient journey: from preoperative assessment and biometry, to surgical technique, IOL selection, intraoperative considerations, and postoperative care. Emphasis will be placed on areas of evolving practice (SV IOL and infection prophylaxis). Background will be given on how the guideline development process was designed to ensure practical relevance while maintaining scientific rigor, and how implementation can be supported across diverse healthcare settings. The goal is not only to standardize best practices but also to allow flexibility where justified by patient needs or surgical complexity. This talk aims to provide attendees with clear, actionable insights from the ESCRS Cataract Guidelines that can enhance surgical outcomes and support continuous quality improvement in cataract care.IOL Exchange in the Premium IOL Era: Challenges and SolutionsThe rise of simultaneous vision intraocular lenses (SV IOLs), including multifocal, extended depth of focus, and toric designs, has significantly expanded visual outcomes in cataract and refractive surgery. However, this progress has been accompanied by an increase in the complexity and frequency of postoperative patient dissatisfaction, leading to a higher demand for IOL exchange in select cases. This presentation explores the unique challenges of IOL exchange in the era of SV IOL technologies. Key indications for explantation will be reviewed, including suboptimal visual quality, dysphotopsia, residual ametropia, and rotational instability. Emphasis will be placed on clinical decision-making, diagnostic precision, and the timing of intervention, particularly in light of evolving patient expectations. Surgical strategies for safe and effective explantation will be discussed. In addition, the importance of careful patient selection, preoperative counseling, and enhanced biometric planning as critical factors in reducing the need for IOL exchange will be highlighted. Emerging technologies that may support more accurate IOL selection and customization will also be briefly introduced. This talk aims to provide practical guidance for surgeons facing the growing demands of managing SV IOL complications and achieving optimal outcomes through safe exchange procedures.
    林鴻源 Bryan Hung-Yuan LinTaiwan Moderator
    張淑雯 Shu-Wen ChangTaiwan Moderator
    林佩玉 Pei-Yu LinTaiwan Moderator
  • Commemorative Ceremony
    Filomena RIBEIROPortugal Speaker Neuroadaptation in Premium IOL PatientsNeuroadaptation is a key determinant of visual success and satisfaction after implantation of premium intraocular lenses. This session will discuss how the brain adapts to new optical conditions created by simultaneous vision IOLs, integrating multiple focal points while minimising photic phenomena. Clinical data and patient-reported outcomes will illustrate the variability and time course of adaptation, highlighting the influence of IOL design and individual neural plasticity. Understanding and supporting neuroadaptation are essential to optimise outcomes and enhance patient experience with modern premium IOL technologies.ESCRS Multiformulas IOL Power Calculator AccuracyAccurate intraocular lens (IOL) power calculation remains a critical determinant of refractive outcomes following cataract surgery. The ESCRS IOL Calculator integrates modern formulas to improve prediction accuracy and support IOL selection across diverse biometric profiles. This lecture will review recent data assessing the performance of the ESCRS Calculator in comparison with individual formulas, focusing on its refractive predictability, consistency across axial lengths, and clinical usability. Results from validation studies and real-world datasets will be presented, highlighting the calculator’s strengths and limitations, as well as its role in optimising outcomes in standard and challenging eyes. The session will also address practical considerations for integration into clinical workflow and the ongoing evolution of formula combinations as biometry and lens technology continue to advance.
    林鴻源 Bryan Hung-Yuan LinTaiwan Speaker
    王一中 I-Jong WangTaiwan Speaker
  • ESCRS Cataract Guidelines Recommendations
    Burkhard DickGermany Speaker ESCRS Cataract Guidelines RecommendationsThe ESCRS Cataract Guidelines represent a comprehensive and evidence-based framework designed to support cataract surgeons across Europe in delivering safe, effective, and consistent care. In this presentation, an overview of the most relevant recommendations will be provided as well as key updates based on the latest clinical evidence. Drawing from robust literature reviews and expert consensus, the ESCRS Guidelines cover the full patient journey: from preoperative assessment and biometry, to surgical technique, IOL selection, intraoperative considerations, and postoperative care. Emphasis will be placed on areas of evolving practice (SV IOL and infection prophylaxis). Background will be given on how the guideline development process was designed to ensure practical relevance while maintaining scientific rigor, and how implementation can be supported across diverse healthcare settings. The goal is not only to standardize best practices but also to allow flexibility where justified by patient needs or surgical complexity. This talk aims to provide attendees with clear, actionable insights from the ESCRS Cataract Guidelines that can enhance surgical outcomes and support continuous quality improvement in cataract care.IOL Exchange in the Premium IOL Era: Challenges and SolutionsThe rise of simultaneous vision intraocular lenses (SV IOLs), including multifocal, extended depth of focus, and toric designs, has significantly expanded visual outcomes in cataract and refractive surgery. However, this progress has been accompanied by an increase in the complexity and frequency of postoperative patient dissatisfaction, leading to a higher demand for IOL exchange in select cases. This presentation explores the unique challenges of IOL exchange in the era of SV IOL technologies. Key indications for explantation will be reviewed, including suboptimal visual quality, dysphotopsia, residual ametropia, and rotational instability. Emphasis will be placed on clinical decision-making, diagnostic precision, and the timing of intervention, particularly in light of evolving patient expectations. Surgical strategies for safe and effective explantation will be discussed. In addition, the importance of careful patient selection, preoperative counseling, and enhanced biometric planning as critical factors in reducing the need for IOL exchange will be highlighted. Emerging technologies that may support more accurate IOL selection and customization will also be briefly introduced. This talk aims to provide practical guidance for surgeons facing the growing demands of managing SV IOL complications and achieving optimal outcomes through safe exchange procedures.
  • Prevention and Management of Complications in Cataract Surgery: A Retinal Specialist’s Perspective vs. International Guidelines
    王元聖 Yuan-Shen WangTaiwan Speaker Prevention and Management of Complications in Cataract Surgery: A Retinal Specialist’s PerspectiveCataract surgery is one of the most common and successful intraocular surgeries performed worldwide. However, sight-threatening complications that in­volve the posterior seg­ment can oc­cur. The complication rate after cat­aract surgery is relatively low, but it is important to recognize these complications early and treat them appropriately. In this presentattion, I will re­view the major posterior segment complications of cataract surgery, such as re­tained lens fragments, post­operative end­ophthalmitis, pseu­do­phakic retinal de­tachment, and cystoid macular ede­ma.
  • Discussion
    Moderator
  • Simultaneous Vision IOLs ESCRS Classification (Pre-recorded)
    Joaquín FERNÁNDEZSpain Speaker Simultaneous Vision IOLs ESCRS ClassificationThe rapid expansion of intraocular lens (IOL) designs and the increasing volume of clinical research supporting their functional outcomes have underscored the need for a unified and globally standardized Functional Vision Framework. The European, American, Asia-Pacific, and Latin American Societies of Cataract and Refractive Surgeons have collaboratively established the Global Functional Vision Working Group (FVWG) to harmonize terminology, methodologies, and outcome reporting in IOL evaluation. This initiative introduces a Functional Classification based on the depth of field (DOFi) and visual acuity enhancement across intermediate to near distances, organized into six progressive categories reflecting different visual performance profiles. Unlike regulatory classifications, such as ISO 11979-7:2024, which focus on safety and pre-market efficacy, the FVWG Functional Classification aims to provide post-market, clinically meaningful differentiation that aligns with patient-centered care and real-world functional benefits. The framework also advocates the integration of additional endpoints, including contrast sensitivity, biometric influences, and validated patient-reported outcome measures such as the AIOLIS questionnaire. Future directions emphasize the development of guidelines to assess the certainty of functional performance based on a hierarchy of evidence, from optical bench predictions to clinical validation and meta-analyses. By aligning technical and patient-oriented perspectives, the FVWG’s Functional Vision Framework represents a major advancement toward global standardization in IOL research and clinical practice. It provides clinicians, researchers, and industry with a robust foundation for consistent measurement, transparent communication, and improved shared decision-making in the selection and evaluation of IOL technologies.
  • Trends and Market Share of Presbyopia-Correcting Intraocular Lenses in Taiwan & Asia
    賴俊杰 Chun-Chieh LaiTaiwan Speaker Trends and Market Share of Presbyopia-Correcting Intraocular Lenses in Taiwan & Asia In this section, we will talk about the trends and market share of presbyopia-correcting intraocular lenses in Taiwan and Asia.Minimize Further Dehiscence of Zonules in Patients with Large Zonular Weakness Zonular weakness increases the likelihood of dealing with complicated cataract surgery and encountering postoperative complications. These risks include intra- and postoperative complications from cataract surgery, such as posterior capsular rupture, vitreous loss, and lens dislocation and decentration. Common risk factors for weak zonules are pseudoexfoliation syndrome, mature cataracts, high myopia, Marfan syndrome, and prior ocular surgery. Signs of weak zonules include iridodonesis, phacodonesis, abnormal anterior chamber depth or asymmetry, angle asymmetry on gonioscopy, and vitreous in the anterior chamber. Zonular dehiscence and lens subluxation or dislocation can be seen in advanced zonulopathy. But most of the time, weak zonules may not be noticed until after the surgery has begun. Intraoperative signs of weak zonules include anterior chamber depth fluctuation, difficulty puncturing the anterior lens capsule, star-shaped striae on the capsule surface during the capsulorhexis, lens movement when manipulations, and difficulty in rotating the nucleus within the capsular bag despite adequate hydrodissection. In this video discussion, we will talk about how to minimize further dehiscence of zonules in patients with large zonular weakness during operation and make the cataract surgery safer.
  • Discussion
    Moderator
  • ESCRS Refractive Surgery Guidelines (Pre-recorded)
    Pavel STODULKA Speaker ESCRS Refractive Surgery GuidelinesThe ESCRS refractive surgery guidelines are evidence-based and provide fundamental classifications of ametropia, target refraction, and available refractive surgical procedures. For each procedure, the guidelines outline its variants, indications, advantages, and limitations. They also define safety thresholds and technical limits applicable to refractive surgery. The guidelines describe the key components of the refractive surgery patient journey: (1) screening and patient selection, (2) diagnostic and preoperative evaluation, (3) procedure selection, (4) perioperative management, and (5) postoperative follow-up. Patient education and expectation management, including informed consent, are comprehensively addressed. Systemic and ocular contraindications, as well as dry eye disease and Meibomian gland dysfunction, are also discussed. Common complications and side effects are listed, including both corneal and lens-related issues. The importance of surgeon experience is emphasized. In summary, the refractive surgery guidelines serve as a clinical tool rather than a legal standard. They promote high-quality, well-informed patient care. Future updates will follow emerging evidence, with patient-reported outcome measures (PROMs) and personalized approaches representing key directions for development.
  • Safety Guidelines and Preoperative Assessment for Refractive Surgery: Challenges in High Myopia and Corneal Risk Factors
    侯鈞賀 Chiun-Ho HouTaiwan Speaker Safety Guidelines and Preoperative Assessment for Refractive Surgery: Challenges in High Myopia and Corneal Risk FactorsRefractive surgery has evolved substantially over the past decade, offering increasingly precise and predictable outcomes. Yet, ensuring patient safety—particularly in individuals with high myopia or underlying corneal risk factors—remains a core responsibility in clinical decision-making. This presentation provides an updated, evidence-based overview of safety guidelines and preoperative assessment strategies essential for optimizing refractive surgery outcomes. We will begin by reviewing current standards for evaluating refractive stability, corneal biomechanics, epithelial thickness mapping, and posterior elevation indices. Special emphasis will be placed on the identification of subclinical keratoconus and forme-fruste ectasia, conditions that significantly elevate the risk of postoperative corneal ectasia. Practical screening algorithms—including integration of tomography, biomechanical testing, and individualized risk calculators—will be discussed to support accurate risk stratification. High myopia presents unique challenges, including thinner corneas, greater ablation depth requirements, and a potentially higher susceptibility to biomechanical decompensation. The talk will highlight recent data on surgical candidacy thresholds, residual stromal bed safety margins, and considerations for choosing between LASIK, PRK, SMILE, or phakic IOL implantation in this population. Case-based examples will illustrate real-world pitfalls and decision-making nuances encountered in screening high-risk patients. Finally, updated consensus recommendations and emerging technologies for improving preoperative detection and enhancing surgical safety will be summarized. By reinforcing rigorous assessment protocols and individualized risk evaluation, this presentation aims to support ophthalmologists in delivering safer, more predictable refractive surgery outcomes for patients with high myopia and complex corneal profiles.
  • Discussion
    Moderator
  • ESCRS Multiformulas IOL Power Calculator Accuracy
    Filomena RIBEIROPortugal Speaker Neuroadaptation in Premium IOL PatientsNeuroadaptation is a key determinant of visual success and satisfaction after implantation of premium intraocular lenses. This session will discuss how the brain adapts to new optical conditions created by simultaneous vision IOLs, integrating multiple focal points while minimising photic phenomena. Clinical data and patient-reported outcomes will illustrate the variability and time course of adaptation, highlighting the influence of IOL design and individual neural plasticity. Understanding and supporting neuroadaptation are essential to optimise outcomes and enhance patient experience with modern premium IOL technologies.ESCRS Multiformulas IOL Power Calculator AccuracyAccurate intraocular lens (IOL) power calculation remains a critical determinant of refractive outcomes following cataract surgery. The ESCRS IOL Calculator integrates modern formulas to improve prediction accuracy and support IOL selection across diverse biometric profiles. This lecture will review recent data assessing the performance of the ESCRS Calculator in comparison with individual formulas, focusing on its refractive predictability, consistency across axial lengths, and clinical usability. Results from validation studies and real-world datasets will be presented, highlighting the calculator’s strengths and limitations, as well as its role in optimising outcomes in standard and challenging eyes. The session will also address practical considerations for integration into clinical workflow and the ongoing evolution of formula combinations as biometry and lens technology continue to advance.
  • Discussion
    Moderator
  • On Site Live IOL Calculation Competition (Main Theme: Post-Refractive Cataract Surgery)
    魏翰偉 William WeiTaiwan Speaker
    林鴻源 Bryan Hung-Yuan LinTaiwan Speaker
  • Award
    Filomena RIBEIROPortugal Speaker Neuroadaptation in Premium IOL PatientsNeuroadaptation is a key determinant of visual success and satisfaction after implantation of premium intraocular lenses. This session will discuss how the brain adapts to new optical conditions created by simultaneous vision IOLs, integrating multiple focal points while minimising photic phenomena. Clinical data and patient-reported outcomes will illustrate the variability and time course of adaptation, highlighting the influence of IOL design and individual neural plasticity. Understanding and supporting neuroadaptation are essential to optimise outcomes and enhance patient experience with modern premium IOL technologies.ESCRS Multiformulas IOL Power Calculator AccuracyAccurate intraocular lens (IOL) power calculation remains a critical determinant of refractive outcomes following cataract surgery. The ESCRS IOL Calculator integrates modern formulas to improve prediction accuracy and support IOL selection across diverse biometric profiles. This lecture will review recent data assessing the performance of the ESCRS Calculator in comparison with individual formulas, focusing on its refractive predictability, consistency across axial lengths, and clinical usability. Results from validation studies and real-world datasets will be presented, highlighting the calculator’s strengths and limitations, as well as its role in optimising outcomes in standard and challenging eyes. The session will also address practical considerations for integration into clinical workflow and the ongoing evolution of formula combinations as biometry and lens technology continue to advance.
    Burkhard DickGermany Speaker ESCRS Cataract Guidelines RecommendationsThe ESCRS Cataract Guidelines represent a comprehensive and evidence-based framework designed to support cataract surgeons across Europe in delivering safe, effective, and consistent care. In this presentation, an overview of the most relevant recommendations will be provided as well as key updates based on the latest clinical evidence. Drawing from robust literature reviews and expert consensus, the ESCRS Guidelines cover the full patient journey: from preoperative assessment and biometry, to surgical technique, IOL selection, intraoperative considerations, and postoperative care. Emphasis will be placed on areas of evolving practice (SV IOL and infection prophylaxis). Background will be given on how the guideline development process was designed to ensure practical relevance while maintaining scientific rigor, and how implementation can be supported across diverse healthcare settings. The goal is not only to standardize best practices but also to allow flexibility where justified by patient needs or surgical complexity. This talk aims to provide attendees with clear, actionable insights from the ESCRS Cataract Guidelines that can enhance surgical outcomes and support continuous quality improvement in cataract care.IOL Exchange in the Premium IOL Era: Challenges and SolutionsThe rise of simultaneous vision intraocular lenses (SV IOLs), including multifocal, extended depth of focus, and toric designs, has significantly expanded visual outcomes in cataract and refractive surgery. However, this progress has been accompanied by an increase in the complexity and frequency of postoperative patient dissatisfaction, leading to a higher demand for IOL exchange in select cases. This presentation explores the unique challenges of IOL exchange in the era of SV IOL technologies. Key indications for explantation will be reviewed, including suboptimal visual quality, dysphotopsia, residual ametropia, and rotational instability. Emphasis will be placed on clinical decision-making, diagnostic precision, and the timing of intervention, particularly in light of evolving patient expectations. Surgical strategies for safe and effective explantation will be discussed. In addition, the importance of careful patient selection, preoperative counseling, and enhanced biometric planning as critical factors in reducing the need for IOL exchange will be highlighted. Emerging technologies that may support more accurate IOL selection and customization will also be briefly introduced. This talk aims to provide practical guidance for surgeons facing the growing demands of managing SV IOL complications and achieving optimal outcomes through safe exchange procedures.
    林鴻源 Bryan Hung-Yuan LinTaiwan Speaker
  • Closing Remarks
    王一中 I-Jong WangTaiwan Speaker
    Burkhard DickGermany Speaker ESCRS Cataract Guidelines RecommendationsThe ESCRS Cataract Guidelines represent a comprehensive and evidence-based framework designed to support cataract surgeons across Europe in delivering safe, effective, and consistent care. In this presentation, an overview of the most relevant recommendations will be provided as well as key updates based on the latest clinical evidence. Drawing from robust literature reviews and expert consensus, the ESCRS Guidelines cover the full patient journey: from preoperative assessment and biometry, to surgical technique, IOL selection, intraoperative considerations, and postoperative care. Emphasis will be placed on areas of evolving practice (SV IOL and infection prophylaxis). Background will be given on how the guideline development process was designed to ensure practical relevance while maintaining scientific rigor, and how implementation can be supported across diverse healthcare settings. The goal is not only to standardize best practices but also to allow flexibility where justified by patient needs or surgical complexity. This talk aims to provide attendees with clear, actionable insights from the ESCRS Cataract Guidelines that can enhance surgical outcomes and support continuous quality improvement in cataract care.IOL Exchange in the Premium IOL Era: Challenges and SolutionsThe rise of simultaneous vision intraocular lenses (SV IOLs), including multifocal, extended depth of focus, and toric designs, has significantly expanded visual outcomes in cataract and refractive surgery. However, this progress has been accompanied by an increase in the complexity and frequency of postoperative patient dissatisfaction, leading to a higher demand for IOL exchange in select cases. This presentation explores the unique challenges of IOL exchange in the era of SV IOL technologies. Key indications for explantation will be reviewed, including suboptimal visual quality, dysphotopsia, residual ametropia, and rotational instability. Emphasis will be placed on clinical decision-making, diagnostic precision, and the timing of intervention, particularly in light of evolving patient expectations. Surgical strategies for safe and effective explantation will be discussed. In addition, the importance of careful patient selection, preoperative counseling, and enhanced biometric planning as critical factors in reducing the need for IOL exchange will be highlighted. Emerging technologies that may support more accurate IOL selection and customization will also be briefly introduced. This talk aims to provide practical guidance for surgeons facing the growing demands of managing SV IOL complications and achieving optimal outcomes through safe exchange procedures.
    林鴻源 Bryan Hung-Yuan LinTaiwan Speaker
701C
口頭論文報告 | Free Paper Presentation
ZH
701G