ASTIGMATISM

This study is testing a new type of artificial lens, called the Clareon TruPlus, for people having cataract surgery. The lens is placed inside the eye to replace the cloudy natural lens and help restore clear vision. About 122 adults with cataracts and astigmatism will receive th…

This study tests whether a custom-made lens implanted during cataract surgery can better correct vision in people with irregularly shaped corneas. Fifteen adults with significant astigmatism will receive the special lens. The goal is to reduce total astigmatism and improve visual…

This study tests whether making tiny arcuate incisions on the cornea during cataract surgery, combined with a special light-adjustable lens, can better correct pre-existing astigmatism. About 60 adults will receive this treatment and be followed to see how much their vision impro…

This study compares two types of trifocal toric lens implants used during cataract surgery to correct both cataracts and astigmatism. About 138 adults with cataracts and regular astigmatism will receive one of the two lenses. The main goal is to see which lens provides better int…

This study compares a new type of LASIK (Ray-Tracing Guided) with three other common laser eye surgeries (SMILE, Wavefront Optimized LASIK, and Topography Guided LASIK) to see which one provides the best vision after surgery. Researchers will enroll 120 people with nearsightednes…

This study tests whether Total30 multifocal toric contact lenses are more comfortable and provide better vision than current lenses for people with presbyopia (age-related blurry near vision). 32 adults aged 40 and older who already wear toric contacts will try the new lenses for…

This study looks at how comfortable daily disposable contact lenses are for people with astigmatism when worn for long hours. Researchers will ask 40 current soft toric lens wearers to rate their comfort. The goal is to see if these lenses work well for long days.

This study will test how comfortable and clear TOTAL30 Multifocal contact lenses feel after wearing them for up to 16 hours. About 36 adults who already wear multifocal contacts will rate their comfort and vision at several points during the day over one month. The goal is to see…

This study compares two LASIK techniques to see which one corrects nearsightedness and astigmatism better. 70 adults aged 22 and older with healthy eyes will have one eye treated with each method. The goal is to find out if one approach leads to sharper vision without glasses.

This study looks at whether people who are happy with their current Acuvue Oasys for Astigmatism contact lenses would like to switch to PRECISION7® for Astigmatism lenses. About 40 adults aged 18 to 40 who wear Acuvue Oasys lenses will try the new lenses and answer questions abou…

This study tests whether Wavelight Plus LASIK, an advanced laser eye surgery, improves vision in both normal and dim lighting for people with nearsightedness and astigmatism. Fifty adults will receive the surgery and be followed for 3 months. Researchers will measure visual sharp…

This study tracks how satisfied 52 people with nearsightedness and astigmatism are after getting Wavelight Plus LASIK, a personalized laser eye surgery. Researchers will measure vision quality, daily life impact, and any visual symptoms like glare or halos for up to 3 months afte…

This study tests whether using a special calculation tool (called a nomogram) helps doctors correct astigmatism more precisely during laser eye surgery. One hundred adults with astigmatism will be treated, and their vision will be checked over three months. The goal is to see if …

This study is testing whether a computer program called EpiMaster can accurately predict how well laser eye surgery (PTK-PRK) will correct nearsightedness. Researchers will compare the software's predictions to the actual vision results in 150 patients six months after surgery. T…