Glaucoma yikes. Unfortunatly I live in a country where the effective treatment with marijuana is illegal.

I don't take Viagra nor do I see blue fog but I'm off to get a check up. Some tail lights create some interesting patterns indeed.

As far as visual arts go I know that Monet was virtually blind during the creation of many water lily murals.

btw Fuchs syndrome is the appearence of tiny bubbles in the cornea that can even change the shape of the eye resulting in varying focus.
Once it corrected my vision without the use of glasses but only for a matter of hours. Its benign but can slightly progress perhaps to the point where diffraction could occur.

Glaucoma is a very nasty and virtually symtomless disorder.