ASTIGMATISM

This study looks at whether making tiny, precise cuts on the cornea (called arcuate incisions) during cataract surgery, combined with a special lens that can be adjusted with light after surgery, can better correct astigmatism. About 60 adults with astigmatism will take part. The…

This study compares two different trifocal toric lens implants used during cataract surgery to correct cataracts, astigmatism, and presbyopia (difficulty seeing up close). About 138 adults with regular corneal astigmatism will receive one of the two lenses. The main goal is to se…

This study looks at how comfortable and clear TOTAL30 multifocal contact lenses feel after wearing them for up to 16 hours. About 36 adults aged 40 and older who already wear multifocal lenses will rate their comfort and vision at different times over 30 days. The goal is to see …

This study looks at how satisfied people are with their vision and quality of life after LASIK eye surgery for nearsightedness and astigmatism. About 52 adults aged 18 to 39 will be followed for 3 months after surgery. Researchers will use questionnaires to measure satisfaction a…

This study compares a new type of LASIK called Ray-Tracing Guided LASIK to three other common vision correction surgeries for nearsightedness and astigmatism. About 120 adults aged 22 to 50 will have one eye treated with the new method and the other eye with one of the other surg…

This study compares two types of LASIK eye surgery to see which one works better for nearsightedness and astigmatism. About 70 adults aged 22 and older will have one eye treated with wavefront-guided LASIK and the other with ray tracing-guided LASIK. The goal is to find out if on…

This study tests whether specially designed lenses, placed during cataract surgery, can reduce blurry vision caused by irregularly shaped corneas. About 15 adults with significant astigmatism will receive these custom lenses. The goal is to see if they improve vision better than …

This study looks at how satisfied people are with their vision after LASIK surgery, especially in dim lighting. About 50 adults with nearsightedness and astigmatism will have the procedure and be followed for 3 months. Researchers will measure vision sharpness and use questionnai…

This study looks at how comfortable daily disposable contact lenses are for people with astigmatism who wear them for long hours. Researchers want to see if these lenses keep eyes feeling good all day. About 40 current contact lens wearers will take part.