Active clinical trials for "Astigmatism"

This study seeks to quantify digital visual performance and subjective visual acceptance of toric contact lenses as compared to spherical lenses in low to moderate astigmatic patients.

The aim of this study was to investigate the short-term clinical performance and subjective acceptance of the two study lenses.

To determine clinically significant difference in results obtained from cataract surgery using IA. One eye will receive aphakic measurements only and the fellow eye will receive aphakic and then pseudophakic measurements when implanting a toric IOL.

This is a bilateral, dispensing, randomized, controlled, double-masked, 2×2 cross-over study to evaluate the clinical performance of ACUVUE OASYS® 1-Day for Astigmatism contact lenses produced on a recently qualified manufacturing line.

Vision and comfort, both objective and subjective, will be assessed for single vision contact lens wearers for either the APIOC™ Sphere or the APIOC™ Astigmatism contact lenses.

The main goal of this study is to evaluate real-world visual outcomes, rotational stability, and patient reported visual disturbances with a non-diffractive extended vision presbyopia and astigmatism correcting intraocular lens in patients with significant corneal astigmatism undergoing bilateral cataract surgery. This is important to ensure optimal results for patients who wish to have intraocular lenses that correct presbyopia and astigmatism, thus giving them a greater independence from spectacles and a better quality of life.

This is a Multi-center, single-arm and non-masked study whereby patients undergoing routine cataract surgery be implanted with a hydrophobic acrylic monofocal toric intraocular lens PODEYE TORIC (model POD T 49P).

This is a prospective, multicenter, single-arm, open-label clinical study of the commercially available TECNIS Toric II IOL. The study will be conducted in up to 192 subjects needing unilateral or bilateral cataract surgery in up to 8 sites in United States (US). The subjects will be followed for up to 3-months postoperatively.

Experienced soft contact lens wearing subjects will be enrolled in this 1-week, confirmatory, randomized, bilateral, 2-way crossover, double masked (subject and investigator), repeated measures, dispensing study. All subjects will be seen for a Screening/Baseline Visit at which informed consent will be obtained and eligibility will be assessed.

Bilateral dispensing clinical trial of stenfilcon A against etafilcon A for astigmatism.