How pterygium surgery changes corneal curvature in astigmatism
Part of Eyes & vision clinical trials.
This trial compares how the curve of your cornea (which affects vision) changes before and after surgery to remove a pterygium—a fleshy growth on the eye—and repair the area with your own tissue. It is for adults with moderate to advanced pterygium that has already caused astigmatism.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are between 30 and 70 years old
- You have a pterygium (a fleshy growth on the eye) for the first time, and it is moderate or advanced (Grade II or III)
- The pterygium has caused astigmatism (an irregular curve in the front of your eye) that your doctor has confirmed
- You are scheduled for a surgery that removes the pterygium and transplants a piece of your own eye tissue (conjunctival autograft)
- You have not had previous eye surgeries like cataract or glaucoma surgery, and you do not have other conditions that affect the cornea's shape
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 study compares two surgical methods to see which better prevents a pterygium (a fleshy growth on the eye) from coming back. It may help people with a first-time pterygium choose a more effective treatment.
This study compares two ways of doing surgery to remove a pterygium (a non-cancerous growth on the eye) and placing a graft of your own conjunctiva (the clear tissue covering the white of the eye). One method uses stitches; the other uses a special glue or no stitches. The goal is to see which method gives better results and recovery.
This study tests whether video-guided education and eye fixation training help patients stay calm and cooperate during pterygium surgery done under local anesthesia. It may reduce anxiety and improve the surgical experience.
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.
This trial tests a surgery to move a piece of the conjunctiva (the clear tissue covering the white of the eye) to treat a primary pterygium, which is a growth on the eye's surface that extends onto the cornea. It may help prevent the growth from returning and improve comfort and vision.
This study tests whether making small cuts in the cornea can safely reduce high astigmatism (blurry or distorted vision) that remains after cataract surgery. If effective, it could improve vision without needing glasses or contacts.
Hear when a new Pterygium trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.