Testing how corneal astigmatism measures on different settings
Part of Eyes & vision clinical trials.
This study checks how accurately eye measurements describe astigmatism (a focus-bending problem) using different exam modes. It may help improve how doctors assess astigmatism after cataract surgery so treatment planning is more precise.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are age 18 or older
- You had cataract surgery (phacoemulsification) with or without a toric lens for astigmatism
- Your vision with the right prescription (best corrected vision) is at least about 20/30
- You do not have other cornea problems like keratoconus, a prominent growth on the eye surface (pterygium), or significant corneal clouding
- You do not have other major eye diseases that could affect vision, like glaucoma, uveitis, retinal disease, or severe/abnormal nearsightedness
- You have not had major eye injury or eye surgery before your cataract surgery, and you do not have certain lens positioning issues (IOL is not too off-center or tilted)
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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