View clinical trials related to Cataract.
Filter by:A. The primary purpose of the study is to evaluate outcomes of aphakic eyes implanted with the IC-8 IOL following cataract removal in prior inlay patients after KAMRA inlay removal. B. The secondary purpose of the study is to determine whether there are any changes in biometry measurements before and after the inlay removal and how the changes affect the calculated IOL power.
The aim of the study is to compare bromfenac to dexamethasone eye drops to control inflammation after cataract surgery. Inflammation in the anterior chamber of the eye will be measured by a Laser Flare Photometer (LFP).
The primary purpose of this study is to evaluate the long-term (3 years) visual acuity and adverse event outcomes for the Clareon® Intraocular Lens (IOL). A comparison to historical safety and performance endpoint (SPE) rates as reported in the European Standard International Organization for Standardization (EN ISO) 11979-7:2014 will be conducted at one year. The secondary purpose of this study is to evaluate the visual acuity outcomes with the Clareon IOL at Years 2 and 3.
The purpose of this study is to evaluate the long-term clinical acceptability and overall satisfaction with the IC-8 IOL at least 12 months post-IOL implantation.
Objective: Zaire ebolavirus is a single-stranded RNA virus associated with high morbidity and mortality. The most recent epidemic of Ebola virus disease (EVD) in West Africa resulted in over 11,000 deaths and disabling sequelae among survivors, among which eye complications are highly represented. Chronic intraocular inflammation and viral persistence may result in posterior synechiae and cataract formation, resulting in loss of visual acuity and requiring surgical intervention to resolve. Approximately one out of ten Ebola survivors present with cataract, most of whom will require intraocular surgery during their lifetime, and many of whom require intervention in the near future to regain quality of life. For survivors who are blind from cataract, cataract extraction is necessary to restore visual function, allow reintegration into society and facilitate performance of activities of daily living. However, surgical parameters among Ebola survivors are unknown, including whether Ebola viral RNA persists in aqueous humor, whether additional anti-inflammatory medication is needed, and the expected degree of improvement in visual function. Moreover, sites of viral persistence are unknown, and it is unclear if lens tissues removed during cataract surgery may harbor virus in Ebola-affected eyes. We propose following EVD survivors and control subjects undergoing cataract surgery to determine visual outcomes among Ebola survivors and explore detection of the presence of virus in lens tissues. The data will inform both future surgical intervention and aid in the understanding of the pathophysiology of Ebola-associated eye disease. Study Population: Up to 60 Ebola survivors and up to 60 controls will be enrolled. The accrual ceiling is 120 participants. Design: This is a prospective, natural history study to evaluate the persistence of Ebola viral RNA in the eyes of Ebola survivors and assess the response to cataract surgery in survivors as compared to controls. EVD survivors will first undergo assessment of aqueous humor for the presence of viral RNA. Survivors testing negative for viral RNA and control subjects will undergo clinically indicated cataract surgery. Subjects will be evaluated 1 day, 1 week, 1 month, and 3, 6, 9 and 12 months after surgery for safety and visual outcome assessments, and more often as clinically indicated. Outcome Measures: The primary outcomes are: 1) the proportion of EVD survivors with evidence of persistence of Ebola viral RNA in ocular tissue and 2) the comparison of amount of intraocular inflammation, as measured by average grade of anterior chamber cell by SUN criteria, between EVD survivors and controls at 1 month and 3 months following cataract surgery. Secondary outcomes include: 1) the proportion of survivors with at least 20/40 best corrected visual acuity (BCVA) after cataract surgery, relative to controls; 2) impact of the covariates age and gender on viral persistence and cataract outcomes; 3) post-operative optical coherence tomography results in EVD survivors.
Prospective, randomised, controlled, single-surgeon, single-center clinical study to compare the clinical outcomes of two trifocal IOLs with different material (hydrophobic and hydrophilic) from the same manufacturer. Implantation of the IOLs is bilaterally.
Prospective, controlled, single-surgeon, single-center post-market clinical follow up study to investigate the clinical outcomes of a hydrophobic trifocal IOL (PhysIOL POD F GF)
Study design will be a mix of retrospective (older Zeiss microscope previously in use at our surgery center) and prospective data collection with the Lumera and Callisto software. The Lumera and Callisto software system will be used for all cataract surgeries including toric analyses and lens placement.
The clinical investigation is a post-market clinical follow up study whereby patients undergoing routine cataract surgery will have monolateral implantation of a commercially available, CE approved monofocal intraocular lens MicroPure 1.2.3. (PhysIOL, Liège, Belgium).
The purpose of this study is to evaluate possible changes of angle kappa after multifocal intraocular lens implantation. Presumable influencing factors of postoperative visual axis shift (ie. biometric parameters of the eye) are investigated to determine the degree and direction of angle kappa alterations.