CATARACT AND IOL SURGERY

This study tests a toric add-on lens placed in the eye to correct high astigmatism in people who have already had a corneal transplant and cataract surgery. The goal is to reduce blurry vision from astigmatism without removing the original lens. About 40 participants will be foll…

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 compares two different materials used in multifocal lenses for cataract surgery. 40 people will receive one type of lens in each eye. The goal is to see which lens provides better contrast sensitivity (ability to see differences in light and dark) 3 months after surger…

This study is testing a new optical biometer called Helioscope that measures key eye dimensions in people with cataracts. The goal is to see if it can accurately measure the eye's shape and length, which helps surgeons pick the right lens implant during cataract surgery. About 10…

This study tests a new digital guidance system that helps surgeons place toric lenses more accurately during cataract surgery. Researchers will compare the system's alignment calculations to standard methods and check vision and astigmatism one month after surgery. The study invo…