Comparing two ways to measure eye surface imperfections
Part of Eyes & vision clinical trials.
This trial compares two different systems for measuring small imperfections (higher-order aberrations) in the clear front part of your eye (cornea). It aims to see which method is better for people with common vision problems like nearsightedness, farsightedness, or astigmatism.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You have nearsightedness / farsightedness between +6 and -8 diopters and astigmatism up to -6 diopters.
- You do not have diabetes or other long-term health conditions affecting the whole body.
- You do not have keratoconus (cone-shaped cornea) or a lazy eye (amblyopia).
- Your best-corrected vision (with glasses or contacts) is 20/25 or better.
- You do not have glaucoma.
- You have not had any previous eye surgeries or eye injuries.
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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