Age progressively adds deposits in the lenses in your eyes, and at some point cataract surgery replaces the lens with a clear one.
Thing is, these deposits work like a dirty windshield in sunlight - you can't see because of the glare. The glare is just off-axis light hitting a surface and scattering - it illuminates the entire surface reducing contrast.
The more deposits and/or the brighter the light, the more it behaves like an completely fogged windshield.
(there is also another kind of glare that affects young eyes - a very bright point of light can cause pain in the retina where it focuses)
Age progressively adds deposits in the lenses in your eyes, and at some point cataract surgery replaces the lens with a clear one.
Thing is, these deposits work like a dirty windshield in sunlight - you can't see because of the glare. The glare is just off-axis light hitting a surface and scattering - it illuminates the entire surface reducing contrast.
The more deposits and/or the brighter the light, the more it behaves like an completely fogged windshield.
(there is also another kind of glare that affects young eyes - a very bright point of light can cause pain in the retina where it focuses)