ARE LOW VISION PATIENTS WITH CENTRAL VISUAL FIELD LOSS MORE SENSITIVE TO CHANGES IN LUMINANCE WHEN READING THAN ARE AGE-MATCHED NORMALS?

摘要

We were surprised to find that visual acuity and reading rates of subjects with central visual field loss were quite tolerant to changes in luminance. This may have been due to the very high contrast of the text (Rubin and Legge, 1989), and to the fact that CFL subjects were reading very large text, about 24 times as large as for the normals.