Mayo Clinic
The purpose of this research is to validate and determine the accuracy of the experimental device when measuring visual acuity versus our standard visual acuity measurements and to gather voice recordings of letters to help build a special system that recognizes spoken letters.
Inclusion Criteria: * Adult patients (≥ 18 years) who come to Ophthalmology Clinic. * Willing and able to provide consent. Exclusion Criteria: * Individuals \< 18 years of age. * Unable to provide consent.
Digital visual acuity device built for iOS ("iPhone") that conducts an assessment of visual acuity using a combination of integrated light detection and ranging (LiDAR) and voice processing.