Clinical Research Directory

Inclusion Criteria: * Males and females. * 18 years of age or older. * Individuals with normal vision or those with refractive error who had their corrected glasses. * Individuals who are willing and able to provide written informed consent to participate in the study. Exclusion Criteria: * Individuals with anterior segment abnormalities such as conjunctivitis, Iritis, uveitis, keratitis, or corneal ulcers. * Individuals with vision deprivation due to corneal opacities, cataracts, glaucoma, retinal, and optic nerve pathologies. * Postoperative/intraoperative complications. * Have received mydriatic drops. * Individuals who cannot achieve normal visual acuity with corrective lenses (glasses or contact lenses). * Individuals with neurological conditions affecting vision * Individuals unable to cooperate with visual acuity testing due to cognitive impairments or language barriers. * Individuals who have had refractive surgery or other eye treatments within the past 6 months.