Eye accommodation disease

This study tests a special lens implant that corrects cataracts, presbyopia (need for reading glasses), and astigmatism (blurry vision from an irregularly shaped cornea). The goal is to see if this lens stays stable in the eye and provides good vision at all distances. About 100 …

This study tests two types of advanced lens implants (IOLs) for people having cataract surgery in both eyes. The lenses are designed to help see clearly at far, arm's length, and near distances. Researchers will check safety and how well the lenses work in 110 participants over t…

This study gives free reading glasses and basic smartphone training to older adults in Bangladesh who receive government benefits. The goal is to see if better vision helps them use mobile banking more often and independently. About 571 people aged 48 to 70 with presbyopia (age-r…

This study tests new versions of Clareon Vivity Pro intraocular lenses (IOLs) to see if they improve vision better than current lenses. About 231 adults with cataracts in both eyes will receive one new lens and one current lens to compare results. The main goal is to measure how …

This trial tests whether creating a small pocket inside the cornea using the SMILE module can improve near vision in people with presbyopia who want to avoid glasses. The procedure aims to increase the eye's ability to focus on close objects. Researchers are measuring how much ne…

This study tests a new device called CorVision, a tiny lens made from collagen that is placed inside the cornea to improve near vision in people with presbyopia (age-related difficulty seeing up close). 110 adults aged 40-65 will receive the implant in one eye through a minimally…

This study compares three types of progressive lenses to see which provides the widest clear vision at distances from 4 meters down to 25 centimeters. About 26 presbyopic participants will test each lens in a random, double-blind order. The goal is to help eye doctors choose the …

This study was designed to check the long-term safety and performance of AcrySof IQ Vivity lens implants in people who had them in both eyes for 3 to 5 years. It was a real-world observation, not a treatment test. However, the study was withdrawn before enrolling any participants…