Low-Luminance Visual Acuity and Microperimetry in Age-Related Macular Degeneration

In early stages of AMD, LLVA did not detect a greater extent of functional deficit than BCVA when compared with control participants. Although there was a trend for LLVA to be more effective at detecting foveal deficits than BCVA in eyes with increasingly poorer retinal sensitivity, both visual acuity measures were much less sensitive compared with microperimetry.