The purpose of this research study is to better understand the impact of visual impairment caused by different eye diseases on the ability to perform daily activities and compare it to that in patients without eye diseases.
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Visual Impairment Measured by Visual Functioning Test
Timeframe: 4.5 years
Number of Eyes Showing Progression
Timeframe: 4.5 years
Time to Detect Progression Measured in Years
Timeframe: 4.5 years