Compare LASIK, SMILE, and PRK for eye prescription correction
Part of Eyes & vision clinical trials.
This study compares three laser eye surgeries—LASIK, SMILE, and PRK—to see which works best for people who have similar eye prescription needs. You may be a good fit if you’ve never had vision-correcting surgery before and you meet the eye-health safety checks.
Summary written for real people, not researchers, by Clin2.
Who can take part
- Be 21 years old or older
- Be a physician or medical student
- Be able to read/speak English and give informed consent
- Have never had refractive eye surgery before (including LASIK or cataract surgery)
- Have eye measurements showing both eyes are aimed for near-perfect “no prescription” vision (emmetropia)
- Be able to return for all follow-up visits for 12 months
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
Similar studies
Other trials that look related to this one.
This trial compares two laser vision correction methods: SMILE surgery in one eye and LASIK surgery in the other eye. It is designed for people with mild to moderate nearsightedness and astigmatism to see which approach works better.
This study compares two types of LASIK surgery to correct nearsightedness and astigmatism. It may help if you have healthy eyes, are 22 or older, and have a stable prescription within a certain range.
This study compares a new type of laser surgery (ray-tracing guided) to three other standard laser methods for correcting nearsightedness with or without astigmatism. It aims to see which approach provides the best vision correction.
This study tests a newer version of LASIK eye surgery to correct nearsightedness and astigmatism. The researchers want to see if this laser approach is safe and effective for people who are eligible.
This study tests how well a new type of LASIK (called ray-tracing-guided) improves vision in low light and how satisfied patients are with the results. It is for people with mild to moderate nearsightedness who want to stop wearing glasses or contacts.
This trial compares two types of laser eye surgery (CLEAR and SMILE) to see which works better for nearsightedness and astigmatism. If you are eligible, it could help find the best option for your vision.
Hear when a new Astigmatism trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.