[m463]

I would suggest you check your eyes as well.

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)