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Astigmatism of Both Eyes clinical trials

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NCT ID: NCT05457348 Not yet recruiting - Clinical trials for Astigmatism of Both Eyes

Effect of Single Incision Versus Three Planned Incisions to Reduce Pre-operative Astigmatism After Phacoemulsification.

Start date: July 30, 2022
Phase: N/A
Study type: Interventional

Cataract surgery by phacoemulsification is the most commonly performed procedure in Pakistan. Cataract surgery aims for visual rehabilitation and freedom from all kinds of eyewear. Pre-operative corneal astigmatism greater than 1.0 Diopter is reported in 42% preoperatively and 58%postoperatively after implanting a monofocal intraocular lens(IOL). Visual acuity tended to worsen postoperatively with increased astigmatism4. Different treatment modalities are used to reduce astigmatism, like toric IOL. Limbal relaxing incision, actuate keratotomy, intrastromal rings, Lasik and femtosecond laser. Most of these modalities are expensive, so they cannot be afforded by the patients as Pakistan is a low-income country with a per capita income of US$1,562 (160th worldwide)

NCT ID: NCT04844281 Completed - Contact Lens Clinical Trials

Wear Experience With Daily Toric Contact Lenses Over a Long Day

Start date: May 11, 2021
Phase: N/A
Study type: Interventional

This study is evaluating the wear experience of a daily toric contact lens after 10, 12, 14, and 16 hours of lens wear.

NCT ID: NCT04432181 Completed - Amblyopia Clinical Trials

Comparison of Deviation Types Among Astigmatic Children With Or Without Amblyopia

Start date: September 4, 2018
Phase:
Study type: Observational [Patient Registry]

the records of astigmatic children were reviewed and any deviation was investigated at near and distance. refractive errors, stereopsis, convergence insufficiency were also evaluated. children were divided into two groups according to the presence of amblyopia and ocular deviations and other parameters were compared between groups.