The way I lost my sight was extremely odd. I was born with glaucoma and lost vision in my left eye very early, and since the pressure in my right eye was hard to control I knew that eventually I would go fully blind, however when it started to finally happen nobody was prepared for it, and that includes 3 glaucoma specialists who thought I was lying when I complained about loss of contrast perception, because
$1 among ophthalmologists that glaucoma affects the peripheral vision first, and since my pressure was fine, my field of view remained unchanged, and both my cornea and lens were clear the only possible explanation was that I was lying. This lasted until a year later a cataract was diagnosed and immediately blamed for the loss of contrast, and I was advised to do nothing about it until I was completely blind. Another year later my pressure started to increase, so I had surgery to implant a glaucoma valve which was supposed to free me from medication, though 3 months after the surgery my pressure was already back to its previous levels. Eventually my contrast perception got so bad that I was having trouble walking on the street , so I decided to have the cataract surgery, which left me seeing everything extremely blurry and didn't restore my contrast perception, leading one of the doctors to finally conclude that it was probably due to optic nerve damage. Following this I had another surgery to control the pressure because my mother believed that it was still possible to do something about my vision and it actually brought the pressure down but it was already too late.
In my case I wish doctors had been quicker to figure out that my optic nerve was getting damaged and attempted the surgeries as early as possible to avoid blindness, but unfortunately due to the aforementioned misconception coupled with their inability to actually observe the back of my eyes since my pupils don't dilate I ended up going blind.