Why do people lose their eyesight?
There is more than one answer:
Injury: To the eye, the nerve, the brain, the blood supply
Clouding of the retina, the the fluid in the eye, loss of
intergity of the cornina, the retina, changes to the retina, the
fundi, dieases, clotting, protein crud,
weakness in the muscles of the, weakness in focus, optic or
brain atorphy, nerve conduction speed, lack of blood supply, too
little or too much blood flow or blood pressure, burning from
sunlight, cancer.