Active clinical trials for "Astigmatism"

Bilateral dispensing clinical trial of fanfilcon A toric lens verses enfilcon A toric lens over two weeks.

Prospective, multicenter, bilaterally-treated, open-label, non-randomized clinical trial.

The purpose of this trial is to compare the performance of two different contact lenses for contact lens wearers with astigmatism.

The purpose of this study is to determine if differences in the design of multifocal intra-ocular lenses would mean different values of higher-order aberrations and different performance in objective parameters such as modulation transfer function.

The purpose of this study is to evaluate neutralization of keratometric astigmatism in patients with cataract and astigmatism higher than 1 diopter, with phaco surgery and the implantation of a toric intraocular lens.

This study will evaluate the fitting characteristics and physiological response of two toric lenses manufactured by Vistakon.

The purpose of this study is to determine the relative performance of a new toric soft contact lens against three toric contact lens currently available in market, specifically with orientation and visual acuity when head is tilted at 90 degrees.

The purpose of this study is to determine the relative performance of a new toric soft contact lens against a toric contact lens currently available in market, specifically with regards to the comfort and vision after two weeks of use.

To compare the short-term astigmatic outcomes of phacoemulsification cataract surgery and intraocular lens implantation using temporal versus nasal clear corneal incisions.

The aim of the study was to evaluate visual outcomes, contrast sensitivity, glare and induced high order aberrations induced by the new CustomVue software use for wavefront-guided LASIK.