Hyperopia

This study checks if a Turkish version of the DDIVAT digital vision test gives the same results as the standard Snellen eye chart. About 200 Turkish-speaking adults, with or without glasses, will take both tests. No drugs or procedures are involved, and there are no risks.

This study tests a special optical film called S.T.O.P®KIT that attaches to eyeglasses. The goal is to slow down the growth of the eye in children aged 6 to 10 with mild farsightedness, which may help prevent nearsightedness later. 180 children will be split into two groups: one …

This early-stage trial tests a non-invasive device that uses controlled UV light to reshape the cornea, potentially reducing the need for reading glasses in people with presbyopia. The study will enroll 25 adults aged 40 to 65 with healthy corneas. The main goal is to see if the …

This study will use a special imaging device (AS-OCT) to measure the thickness of the cornea's outer layer in 360 adults with nearsightedness, farsightedness, astigmatism, or normal vision. The goal is to see if different vision problems have unique thickness patterns. Participan…

This study looks at how the length of the eye and the amount of nearsightedness or farsightedness relate to the health of the optic nerve and surrounding layers. Researchers will use a special camera (OCT) to take detailed images of the eye in 266 adults. The goal is to better un…