A Novel Acuity Testing Method
Vision Disorder
About this trial
This is an observational trial for Vision Disorder focused on measuring Instrument Development, Psychophysical Methods, ETDRS, Computer-Based Methods, Validation Study, Visual Acuity, Vision Tests/Instrumentation, Psychophysics, Modified Binary Search, Visual Acuity Test
Eligibility Criteria
INCLUSION CRITERIA: Subjects will include clinic patients selected with priority for those with poor visual acuity and based on maintaining smooth clinic functioning. Subjects will be classified into those with or without ocular disease, high refractive error, AMD, cataract, optic nerve abnormality, corneal abnormality, uveitis, glaucoma, other retinal/choroid abnormality, amblyopia, or a specified other ocular disease. Patients with low vision will be oversampled in order to test within a large range of possible end points. All subjects will have the ability to understand and sign an informed consent form obtained prior to enrollment. Enrolled participants will range in age from 7 years to 90 years. EXCLUSION CRITERIA: Illiteracy (inability to identify letters of the Latin alphabet) Children younger than 7, due to cognitive inability to undergo specific tests and procedures required in the protocol.
Sites / Locations
- National Eye Institute (NEI)