Active clinical trials for "Cataract"

The purpose of this study is to evaluate the visual outcomes and patient satisfaction after implantation of a toric IOL in patients with predicted residual corneal astigmatism between 0.75 and 1.00 D. Cataract is prevalent throughout the world and IOLs are routinely implanted after the extraction of the cataractous lens. It is the most frequently performed surgery in the United States with an estimated 2-3 million procedures performed annually. With the aging population on the rise, as well as the increasing popularity of refractive intraocular lenses, the number of intraocular surgeries continues to rise. Over the years, the surgical technique has evolved from intracapsular extraction to modern phacoemulsification. This development has helped with the evolution of IOLs as well. The IOLs have advanced extensively: different materials and designs are available, permitting implantation through smaller, sutureless incisions. Traditional IOLs are of monofocal design providing vision at one distance, typically far; and correct mainly the spherical component of the refractive error. However, there are patients with corneal astigmatism that require additional surgical treatment such as laser correction (laser in situ leratomileusis, LASIK; photorefractive keratectomy, PRK) or limbal relaxing incisions, RLI). Another alternative is the use of a toric IOL, which has been especially designed to correct both the sphere and the astigmatism. The ACRYSOF Toric IOL is intended for primary implantation in the capsular bag of the eye for visual correction of aphakia and preexisting comeal astigmatism in adult patients with or without presbyopia, who desire improved uncorrected distance vision, reduction of residual refractive cylinder and increased spectacle independence for distance vision. The treatment selection of the corneal astigmatism depends on the amount of cylinder as follows, between 0.25 and 0.75 D creating the surgical incision on the steep axis; between 0.75 and 1.75 D, RLI; between 1 and 2.25 D, toric IOLs; and between 1 and 3.00 D, LASIK/PRK.

Clinical trial with medical devices, post-authorization, parallel, single-blind, randomized, comparative, prospective to study how afects the quality of life the use of ocular eye drops on patients with dry eye symptomatology and age-related loss of visual acuity. Secondary purposes: efects on the dry eye symptomatology, efect on visual acuity and treatment adherence.

Evaluation of the antimicrobial efficacy of a liposomal ozone-based solution (OZODROP®) , vs placebo in 200 patients undergoing cataract surgery by phacoemulsification . The clinical trial will last 3 days of treatment per patient. The conjunctival swab will be taken for each of the two eyes (in treatment and control) at T0 (before starting the treatment - 3 days before the cataract surgery) and at T3 (after 3 days of treatment - immediately before the cataract surgery). The last OZODROP instillation will take place 10 minutes before taking the sample.

The objective of this study is to obtain an initial assessment of the safety and performance of an investigational AIOL in patients undergoing cataract extraction and IOL implantation.

The hypothesis of this trial is that listening to music will decrease the stress levels that patients face as evidenced by their STAI scores, salivary cortisol levels and intra-operative autonomic parameters.

Prospective study to evaluate the efficacy of using self-retained cryopreserved amniotic membrane after debridement in treating Epithelial Base Membrane Dystrophy (EBMD) to optimize the ocular surface integrity and intraocular lens calculation before cataract surgery.

This is an interventional, non-controlled, multicenter international trial with a prospective design on one cohort of patients.

Aims and objectives The purpose of this study was to develop an atlas to explore the effect of micro-instrument cleaning on the safety of cataract surgery. Background Cataract surgery safety is affected by many factors, the most influential of which is the quality of instrument cleaning. Previous studies focused on the reaction in the eye after cataract surgery. None offered a solution for manually cleaning ophthalmic micro-instruments or response data for surgical instruments after cataract surgery. Design The study was designed to collect quantitative data derived from postoperative ocular evaluation. Methods We developed an atlas that details micro-instrument cleaning that could be used to train nurses to have this skill. A total of 120 cataract patients were divided evenly into experimental and control groups. In the experimental group, cataract surgery was undertaken using microsurgical instruments that were cleaned by the atlas-trained nurses. In the control group, micro-instruments were used that had been cleaned by non-atlas-trained nurses. All the patients underwent the same postoperative tests: anterior chamber cell counts and visual and intraocular pressures on postoperative days (PODs) 1, 3, 7, and 14.

The purpose of this study is to evaluate the stability and efficacy of The AcrySof Toric intraocular lens in the bag in high myopic subjects.

The purpose of this study is to compare the levels of several immunoregulatory factors in serums and aqueous humor of type II diabetes cataract patients with those in senile non-diabetic cataract patients since disturbed cytokine and growth factor microenvironment in diabetic eye may contribute to an increased frequency of intraoperative and postoperative intraocular lens surgery complications.