Testing different toric lens types during cataract surgery
Part of Eyes & vision clinical trials.
This study compares different types of artificial lens implants (including toric lenses that correct astigmatism) during cataract surgery. It may help find which lens options work best for your vision and astigmatism correction.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are 45 to 95 years old and have age-related cataracts in one or both eyes.
- Your eye doctor has recommended cataract surgery with ultrasound removal and placement of a back-of-eye lens (posterior IOL).
- You need a specific amount of farsighted/near-sighted correction (spherical power between about +6 and +30, or +10 to +25 depending on the lens group).
- Your pupil dilation is large enough before surgery (about 5.5 mm or more; at least 7.0 mm in some lens groups).
- You have astigmatism of at least 1.0 diopter.
- You have not had prior eye surgery or major eye trauma, and you do not have certain eye/inflammation or severe/unstable health conditions.
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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