REFRACTIVE ERRORS

This study is testing whether providing free glasses to older adults in India who need them can slow down age-related cognitive decline. Over 800 people aged 60 and older with uncorrected vision problems will be randomly assigned to receive glasses or not. Researchers will track …

This study tests a machine learning model that predicts how much nearsightedness a person has without using dilating eye drops. The model uses standard eye measurements like autorefraction and corneal shape. If accurate, it could make eye exams quicker and more comfortable for ad…

This trial tests whether a wearable device that tracks and reminds children to spend more time outdoors can help prevent nearsightedness (myopia). Primary school students with adequate hyperopic reserve—a natural buffer against myopia—will be randomly assigned to either a program…

This trial tests whether auricular acupressure—small adhesive patches with seeds placed on specific ear points—can prevent myopia in children who are at higher risk. Primary school students in grades 1-4 with insufficient hyperopic reserve (a sign they may become nearsighted) wil…

This trial tests whether combining auricular acupressure (small seeds placed on the ear) with defocus spectacle lenses can slow the progression of nearsightedness (myopia) in primary school children. About 358 students in grades 1-4 with premyopia or myopia will be randomly assig…

This study is developing imaging and computer simulation tools to predict how a person's cornea (the clear front part of the eye) will change after treatments like crosslinking for keratoconus or LASIK for vision correction. Researchers will take detailed images of the eyes of 60…

This pilot study looks at whether refractive surgeries like LASIK change the results of optical coherence tomography (OCT), a common eye scan used to monitor conditions like glaucoma. Researchers will measure the thickness of the retina and other eye layers before and after surge…

This observational study in 120 healthy young adults aged 21-25 examines whether facial features are linked to eye measurements like eye length, which affects nearsightedness or farsightedness. Participants undergo non-invasive eye exams and 3D facial scans. The goal is to better…

This study is testing whether a computer program called EpiMaster can accurately predict how well laser eye surgery (PTK-PRK) will correct nearsightedness. Researchers will compare the software's predictions to the actual vision results in 150 patients six months after surgery. T…