Senile cataract

This trial compares two types of intraocular lenses implanted during cataract surgery: the Clareon PanOptix and the Tecnis Odyssey. About 266 adults with cataracts in both eyes will receive one lens type in each eye, and researchers will measure how well they see at various dista…

This study tests an experimental eye drop called ZOC2017217 in 40 people with age-related cataracts. Participants will use the drops twice a day for 24 weeks to see if it improves vision and lens clarity compared to a placebo. The goal is to find a non-surgical option for catarac…

This study tests a small, coiled stent designed to widen a natural drainage channel in the eye, helping fluid drain and lower pressure in people with open-angle glaucoma. Participants receive the stent in one eye at the same time as cataract surgery. The goal is to see if the ste…

This study compares a new domestic trifocal lens (D615L) to the Zeiss AT LISA tri 839MP for people having cataract surgery. 90 adults with age-related cataracts will receive one of the two lenses and be followed for 6 months to measure vision at different distances. The goal is t…

This study looks at whether a special imaging technique called intraoperative optical coherence tomography (iOCT) can help doctors better diagnose and treat lens diseases like cataracts and lens dislocation. Researchers will review data from 1,200 patients who had lens surgery to…

This study looks at how well a new type of lens, called Clareon TruPlus, helps people see clearly at intermediate distances (like a computer screen) after cataract surgery. About 50 adults with cataracts in both eyes will get this lens and be tested 12 weeks after surgery. The go…

This study compares two types of artificial lens implants used in cataract surgery. Some patients will get a different lens in each eye, while others will get the same lens in both eyes. The goal is to see which approach gives better vision and causes fewer problems like glare, h…

This study compares two methods for teaching cataract surgery to ophthalmology residents. One group learns steps in the usual order, while the other learns easier steps first. Researchers will measure how well residents perform surgery and how often complications occur. The goal …

This study tests whether a smartphone app (WHOeyes) plus a symptom questionnaire can safely replace the standard in-clinic checkup one week after cataract surgery. About 334 people aged 50–80 with uncomplicated cataracts will either use the app at home or come to the clinic. The …

This pilot study looks at whether metformin, a standard diabetes medicine, gets into the lens capsule of the eye and can slow the growth of lens cells that cause cataracts. Researchers will collect blood and lens tissue from 40 people with type 2 diabetes and age-related cataract…