Zhongshan Ophthalmic Center, Sun Yat-sen University

This is a very early-stage study to check the safety of an experimental gene therapy called ZVS106e for people with Stargardt disease, a genetic condition that causes vision loss. Researchers will inject the drug once into the back of one eye in up to 9 participants to see if it …

This study is testing whether a new type of spectacle lens can safely slow down the progression of nearsightedness in children. Researchers will enroll about 316 adolescents in Guangzhou, China, who will wear either the new D.D.C lenses or regular glasses for a year, then switch.…

This study compares two different cataract surgery techniques to see which one helps patients see better in the first day after surgery. Researchers will randomly assign 128 adults (ages 50-90) with age-related cataracts to receive either intracapsular or supracapsular phacoemuls…

This study aims to find the best surgical technique for implanting an artificial lens in children born with a dislocated natural lens. Researchers will compare two different needle insertion points during a 'sutureless' surgery to see which one leads to better vision and fewer co…

This study aims to find the best needle placement for a specific eye surgery technique used in children with a congenital condition where the eye's lens is displaced. Researchers will compare two different needle insertion points (2mm vs. 2.5mm behind the edge of the cornea) to s…

This study is testing whether a mobile messaging program called MyopiaEd can help prevent nearsightedness in children. Researchers will send educational messages to parents of 1,330 third-grade students in China over one year. The goal is to see if these reminders improve childre…

This study is testing whether daily carotenoid supplements (lutein, zeaxanthin, and meso-zeaxanthin) can improve visual function in healthy Chinese adults. Researchers want to see if these nutrients, known to protect against age-related vision loss, can enhance contrast sensitivi…

This study is testing a new approach to cataract surgery for people who are also very nearsighted. Researchers want to see if implanting a specific type of lens, set up in a 'monovision' style (one eye for distance, one for near), improves distance vision without glasses compared…

This study aims to establish a baseline and track progress on key eye health indicators in Xinxing County, China. It will enroll 3,000 local residents, including school children, seniors, and diabetic patients. Researchers will conduct vision tests, eye exams, and questionnaires …