Active clinical trials for "Cataract"

This is a study to compare visual outcomes of subjects bilaterally implanted w/ReSTOR to subjects bilaterally implanted with the Tecnis Multifocal Intraocular Lens (IOL) or Acri.LISA IOL

To assess the rotational stability and the residual refractive cylinder and patient reported outcomes of the AcrySof Toric intraocular lens after unilateral or bilateral implantation.

Approximately 126 subjects scheduled to undergo cataract surgery by phacoemulsification, will be randomized in an even allocation (1:1:1) to either Acuvail, Xibrom or Nevanac. Subjects will be instructed to begin dosing the study medication in the operative eye the day before surgery and continue dosing on the day of surgery. Beginning one hour before surgery 1 drop of study medication will be instilled by operating room staff approximately every 15 minutes for a total of 3 doses. At the designated time a paracentesis will be performed at the start of the cataract procedure and at least 0.15cc of aqueous humor will be collected. The sample will be immediately stored on dry ice and shipped to a laboratory for analysis.

The objective of this study is to demonstrate the ability of the Hydrus Implant to lower intraocular pressure in glaucoma patients undergoing cataract surgery.

The purpose of the study is to evaluate the far, intermediate and near visual acuities with a trifocal IOL.

The purpose of this study is to evaluate differences in the depth of focus after implantation of a spherical or aspheric IOL in hypermetropic and emmetropic patients. After implantation of a spherical IOL hypermetropic patients may achieve a better depth of focus compared to emmetropic patients due to a larger amount of spherical aberrations.

The aim of this study is to evaluate the visual function of patients with bilateral implantation of the IOL trifocal ZEISS AT LISA TRI AND TRI TORIC by means of visual acuity tests with and without optical correction, sensitivity curve contrast, defocus curve and quality questionnaire visual function (VFQ-25).

This will be a single center, non comparison clinical trial. Fifty study patients will have the Symfony IOL implanted in their dominant eye and a +3,25D Tecnis Multifocal in their non-dominant eye. The investigators will be evaluated vision at distance, intermediate and near as well as assessing patient satisfaction and spectacle independence.

The aim of the present study is to investigate the outcomes of congenital cataract surgery when injecting intraoperative intracameral triamcinolone versus the postoperative use of oral prednisolone. This is a prospective, randomized clinical trial. Sixty children will be submitted to congenital cataract surgery younger than 2 years of age. They will be randomly divided in two groups. The study group will receive an intraoperative intracameral triamcinolone acetonide injection. The control group will receive prednisolone syrup postoperatively. The surgical outcomes will be assessed after one year.

This prospective nonrandomized study comprised patients with cataract, corneal astigmatism, and motivation for spectacle independence. In all cases, a Rayner M-flex® T toric Intraocular Lens will be implanted in the capsular bag. Three months postoperatively, distance, intermediate, and near visual acuities; spherical equivalent; residual refractive astigmatism; defocus curve; and contrast sensitivity will be evaluated. A patient-satisfaction and visual phenomena questionnaire will also be administered.