Light treatment to mark astigmatism axis

This study develops a formula to help surgeons correct astigmatism (blurred vision from curved corneas) during a laser eye surgery called LASEK. If you're eligible, your surgery may be more precisely tailored to your eye shape.

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 study tests whether combining tiny corneal cuts with a special adjustable lens can better correct astigmatism (an irregularly shaped cornea) during lens replacement surgery. It may help people who need cataract surgery and have astigmatism achieve sharper vision without glasses.

This study is for people with cataracts who are planning to get treatment. It will observe your eye health and treatment process without giving you any new medicine.

This trial compares two ways of mapping your eye to guide LASIK surgery for people with nearsightedness and mild astigmatism. It looks at how well vision (especially best-corrected vision) does after surgery one month later.

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.