Study Status: ACTIVE_NOT_RECRUITING
Recruit Status: ACTIVE_NOT_RECRUITING
Study Type: OBSERVATIONAL
Official Title: A Prospective Multi-Center Observational Study to Assess the Reliability and Validity of the Multi-Luminance Y-Mobility Test (MLYMT) and Multi-Luminance Shape Discrimination Test (MLSDT)
Brief Summary: This is a prospective Multi-Center Observational Study to assess the reliability and validity of the Multi-Luminance Y-Mobility Test (MLYMT) and Multi-Luminance Shape Discrimination Study (MLSDT) Main Outcome Measures: (i) Performance scores in normal and severely visually impaired subjects with a clinical diagnosis of retinitis pigmentosa (RP) on MLYMT and MLSDT at multiple luminance levels and (ii) reliability and content validity of MLYMT and MLSDT.