Field Of Cataract Surgery Research Articles

Current Concepts and Recent Updates of Optical Biometry- A Comprehensive Review.

One of the most recent advancements in the field of cataract surgery is optical biometry. With the advent of optical biometry ocular measurements are now simpler, quicker, and more precise. The devices have made intraocular lens (IOL) power calculations easier in difficult situations too, such as in cases with extremes of axial lengths, silicone filled eyes, cataract surgery in post-keratoplasty eyes, post Laser-Assisted in Situ Keratomileusis (LASIK) eyes, etc. The gold standard for IOL power calculation in the present day is by the use of optical biometry devices. The anatomical measurements by these devices are highly precise and because of these measurements and the incorporation of various IOL power calculation formulas the optical biometry devices give the accurate power and the post-operative visual outcome is highly satisfactory among the patients. The growing use of these devices has made cataract the most commonly performed refractive surgical procedure nowadays. In the current scenario, optical biometry has widespread acceptance in almost all countries and has many advantages over ultrasound or immersion biometry. Cataract surgeons can obtain easy and reliable measurements from these devices. Refractive surprises have also decreased considerably with their use. This article will comprehensively review the principles of the various optical biometry devices, the parameters used in each of the devices, the advantages and disadvantages, and add more like what all this article will add.

Total Opacification of Intraocular Lens Implant After Uncomplicated Cataract Surgery: A Case Report

The introduction a few years ago of hydrophilic acrylic intraocular lenses (IOLs) a few years ago constituted a major advance in the field of Cataract Surgery. These lenses have become increasingly popular, thanks to the ease with which they can be folded and implanted in the capsular sac through a small incision; their good medium and long-term tolerance attributable to the great biocompatibility of the material employed; and the ease with which YAG laser capsulotomy can be performed where required, without damaging the lens and thus minimizing certain complications. Different models have been developed, generally offering good short- and middle-term vision performance, though little is known of their potential long-term results and complications.1 These complications include opacification of IOLs, which has been recognized for several years.3 Most reported cases have been late opacification of hydrophilic acrylic IOLs.4-10 Opacification reduces visual acuity (VA) and it requires some intervention. We report the clinical history and management of a cases of progressive opacification in hydrophilic yellow acrylic IOLs.

Femtosecond laser-assisted cataract surgery (FLACS) in resident training

This article reviews the history of the femtosecond laser in ophthalmology and its subsequent introduction into the field of cataract surgery. It discusses the innovations that this technology has brought to the field. The article also describes the current system of teaching cataract surgery to ophthalmology residents in the United States and then examines how femtosecond laser-assisted cataract surgery (FLACS) can be a beneficial part of residency education.

Project RESET. REtinal Surgery systEm for Training

PurposeRetina surgery is an increasingly performed procedure for the treatment of a wide spectrum of retinal pathologies.MethodsYet, as most micro‐surgical techniques, it requires long training periods before being mastered. To properly answer requests from clinicians for highly realistic training on one hand, and new requirements from accreditation or recertification from surgical societies on the other hand, we propose to develop a high‐fidelity training system for retinal surgery.ResultsThis simulator will be built upon our strong scientific expertise in the field of real‐time simulation, and a success story for technology transfer in the field of cataract surgery simulation.ConclusionsMembers of the consortium have a long expertise in the development of prototypes, as well as collaboration with clinical partners. The simulation system that we propose to develop will be based on the Open Source simulation platform SOFA, and will rely on expertise from our partners to ensure clinical and industrial relevance.

2007 Survey for KSCRS Members - Current Trends in Cataract Surgery in Korea -

Purpose: This study investigates the current state of and future trends in the field of cataract surgery in Korea. Methods: Since 1995, the members of the Korean Society of Cataract and Refractive Surgery (KSCRS) have made annual surveys on cataract and refractive surgery. The 2005 annual survey, consisting of 76 multiple-choice questions, was mailed in February 2005 to 300 KSCRS members. Sixty-six (22.0%) members answered the questions. Current data were compared with those of previous annual surveys and with those of surveys in the United States. Results: Forty-six percent of the respondents were in the fifth decade. The duration of hospital stay has decreased annually and the use of topical anesthesia (44%) did not change. Self sealing wound construction was the main wound closure technique in phacoemulsification (63%). The implantation of phakic IOL was performed by 38% of the respondents and the most preferred intraocular lenses for small incision cataract surgery were acrylic (79%). Interest in the value added IOL has increased annually. Conclusions: This survey summarized current trends and changes in cataract surgery in Korea.

2007 Survey for KSCRS Members - Current Trends in Refractive Surgery in Korea -

Purpose: This study investigated the current situation and future trends in the field of cataract surgery in Korea. Methods: Since 1995, the members of the Korean Society of Cataract and Refractive Surgery (KSCRS) have conducted annual surveys regarding cataract and refractive surgery. The 2007 annual survey, consisting of 85 multiple-choice questions, was mailed in February 2008 to 301 KSCRS members. Sixty-two (20.6%) members answered the questions. Current data were compared with data from previous annual surveys and with surveys in the United States and Europe. Results: Fifty-four percent of the respondents were over 50 years of age. The duration of hospital stay has decreased annually and the use of topical anesthesia (57%) has slightly increased. Self-sealing wound construction was the main wound closure technique in phacoemulsification (60%). The implantation of phakic intraocular lenses (IOL) was performed in 56% of the respondents and the most preferred IOL for small incision cataract surgery were acrylic (88%). Interest in the additional value of IOL has increased annually. Conclusions: This survey summarized current trends and changes in cataract surgery in Korea.

The rate of outpatient cataract surgery in ten European countries: An analysis using data from the SHARE survey

The aim of this study was to determine the rates of outpatient cataract surgery (ROCS) in ten European countries and to find country-specific health indicators explaining the differences. Using data from the Survey of Health, Ageing and Retirement in Europe (SHARE), 251 eligible respondents were identified for which cataract surgery was the last surgical procedure. The ROCS of ten countries were compared using logistic regression. The influence of the public expenditure on health as per cent of the total expenditure on health, of the number of acute care beds per 1,000 population, and of the number of practicing physicians per 1,000 population, was studied by multiple logistic regression. Additional information was obtained from country-specific opinion leaders in the field of cataract surgery. The ROCS differed significantly between the ten analysed European countries where Denmark had the highest (100%) and Austria the lowest (0%) rate of day care surgery. A decrease in the density of acute care beds (p < 0.0000001) and in the density of practicing physicians (p < 0.05) and an increase in the public expenditure on health as per cent of the total health expenditure (p < 0.01) lead to an increase in the ROCS. According to the opinion leaders, regulations and financial incentives also have a strong influence on the ROCS. The outpatient rate of cataract surgery in the ten European countries was mainly influenced by the acute-care beds density, but also by the density of practicing physicians, and by the public expenditure on health.

Optimization of biometry for intraocular lens implantation using the Zeiss IOLMaster

To compare the accuracy of biometry using conventional A-scan ultrasonography and partial coherence interferometry, and to improve the accuracy of biometry by sequential audit of postoperative refractive error. The study was performed in three phases. In phase 1, 20 consecutive patients undergoing routine phacoemulsification underwent biometry using both A-scan ultrasonography and the Zeiss IOLMaster (ZIOLM). A single experienced optometrist refracted all patients 2 weeks after surgery. The errors between expected and achieved refraction were calculated and compared between the two methods. In phases 2 and 3, a further 22 and 20 patients, respectively, were recruited and only the ZIOLM was used for biometry. The manufacturer's suggested A-constant was refined and the error between expected and achieved refraction was calculated. In phase 1, the median unexpected error for the ZIOLM was +0.63 (interquartile range +0.368 to +1.015) and for A-scan biometry was - 0.24 (interquartile range - 1.335 to +0.802). In phase 1 65% of patients' postoperative refractions were found to be within 1.0 D of emmetropia using the ZIOLM (55% using A-scan biometry). Refinements to the A-constant improved this to 95% by phase 3. An error was identified in IOL power estimation with the ZIOLM, when using the manufacturer's recommended A-constant (recommended and previously optimized ultrasound A-constant 118.0; ZIOLM optimized A-constant 118.6). Serial modifications to the A-constant were successful in reducing the unexpected error to well within the tolerance limits of published international standards.

Fechner's Intraocular Lenses

These authors have produced a comprehensive book on cataract surgery and intraocular lenses that has few flaws. The 31 chapters cover a wide range of topics, beginning with the history of lens implantation, physical chemistry of lens implant material, lens power calculation, corneal endothelial studies, histology of postoperative specimens, and a detailed discussion on cystoid macula edema. They review the evidence concerning cystoid edema and conclude, as have others, that it is now an "established fact that an intact posterior capsule protects the macula from edema" (p 134). The current evidence for damage from ultraviolet light is also reviewed; yet, despite lack of clinical evidence that long-term exposure to ultraviolet light induces a maculopathy, the authors advise ultraviolet filtering spectacles to protect against this potential damage. "Overall, this book gives detailed coverage to the whole field of cataract surgery." The next portion of the book describes the authors' preferred technique