Night Blindness is a condition of inability to see in dim light, also known asnyctalopia. It is apparently caused by other conditions of the eye. These can include:
- Vitamin A deficiency, treatable with supplements and dietary adjustments.
- Near-sightedness or myopia – A new eyeglass lens presciption can relieve the problem.
- The effects of glaucoma medications – Ask your doctor about your medications and whether they should be changed.
- Cataracts – The clouding of the lens inside of the eye. This not a growth over the outside of the eye, as some legends tell. Some cataracts can be treated by surgical removal and replacement with an opitcal lens – an aunt of mine had this successfully performed in the late 1970s and surgical techniques have improved quite a lot since then. It’s even doen on an outpatient basis now.
- Retinitis pigmentosa – Affecting close to 100,000 people in the USA, this is a condition of the rods and cones of the retina. They begin to lose function. No treatment or cure exists in 2010, but research is under way. Some forms of this conditioncan lead to eventual blindness, bit not all of them so do. See your eye doctor yearly for examinations. If you see flashing lights and have loss of vision to the side, these may be symptoms, so call your eye doctor.
- Scratched Eyeglasses