View clinical trials related to Cataract.
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The purpose of this study is to evaluate the safety and efficacy of the iStent trabecular micro-bypass stent in reducing intraocular pressure (IOP) in subjects with newly diagnosed open-angle glaucoma and subjects diagnosed with Ocular hypertension.
To evaluate the safety and efficacy of a new trabecular bypass that is implanted in conjunction with cataract surgery in open angle glaucoma subjects.
The purpose of this study is to evaluate the safety and efficacy of the iStent trabecular micro-bypass stent in reducing intraocular pressure (IOP) in subjects with open-angle glaucoma or ocular hypertension and co-existing cataract.
First object is to compare square edge PMMA with round edge PMMA IOL where the materials are same. Next objective is to compare square edge PMMA IOL with Acrysof IOL where the materials are different
The Collaborative Italian-American Clinical Trial of Nutritional Supplements and Age-related Cataract (CTNS) is a 13-year study designed primarily to evaluate the safety and efficacy of a vitamin-mineral supplement (Centrum) containing recommended daily-allowance dosage (RDA) in preventing age-related cataract or delaying its progression in participants with early or no cataract at baseline.
Incision size in cataract surgery is related to induced surgical astigmatism, chamber stability, and surgical efficiency. Sleeves of different diameters change the size of the surgical incision and amount of fluid allowed into the eye during the surgical procedure for a given set of surgical parameters. Optimization of surgical parameters requires review of surgical efficiency including: fluid usage, energy usage, and total surgical time. With optimized surgical parameters recommendations can be made to increase the efficiency and safety of cataract surgery.
Based on these recent observations and findings in this new animal model of pigmentary glaucoma in the DBA/2J mouse, we propose that immune system abnormalities in the anterior chamber may play a possible role in the development of pigmentary glaucoma and possibly primary open-angle glaucoma (POAG) in humans.
The aim of this study is to compare the effectiveness and safety of combined phacoemulsification, posterior chamber intraocular lens implantation , trabeculectomy (phacotrabeculectomy) with phacoemulsification, intraocular lens implantation and glaucoma drainage device(phacotube) in the early and intermediate control of intraocular pressure(IOP) in patients with primary open angle and angle closure glaucoma.
Falls are the most serious and frequent home accident amongst elderly. Most falls occur during walking. Vision is reduced with ageing and visual impairments affect balance. Uncorrected visual deficits and balance problems are reported to be risk factors for falls and fall related fractures. The present project uses a longitudinal design and aims at assessing the impact of cataract surgery on balance and gait as risk factors for falls.