Night blindness (nyctalopia) is your inability to see well at night or in dim light.
It is often associated with an inability to quickly adapt from a well-illuminated to a poorly illuminated environment. It is not a disease in itself, but rather a symptom of an underlying eye problem, usually a retina problem. It is common for people who are myopic to have some difficulties with night vision.
o Myopia (nearsightedness).
o Glaucoma medications that work by constricting the pupil.
o Retinitis pigmentosa.
o Vitamin A deficiency, especially in individuals who have undergone intestinal bypass surgery.
PREVENTION - PREVENT NIGHT BLINDNESS:
Eat foods that have Vitamin A. suggestive as:
• Butternut squash.
Get regular eye exams. See an eye specialist consistently so that they can figure out early if you have problems with your eyes. Wear sunglasses. Sunglasses protect your eyes from the sun. UV rays increase your risk of cataracts, macular degeneration and glaucoma. Make sure that your sunglasses do the following:
- Block out at least 99% of UVA and UVB rays.
- Protect your eyes from every angle.
- Filter 75% to 90% of visible blue light.
LYCOPODIUM - Night-blindness more characteristic. Sees only one-half of an object. Ulceration and redness of lids. Eyes half open during sleep.
PHYSOSTIGMA - Night-blindness (Opposite: Bothrops); photophobia; contraction of pupils; twitching of ocular muscles. Lagophthalmus. Muscæ volitantes; flashes of light; partial blindness. Glaucoma; paresis of accommodation; astigmatism. Profuse lachrymation.
CHINA - bright dazzling illusions; night blindness in anæmic retina. Spots before eyes. Photophobia. Distortion of eyeballs. Intermittent ciliary neuralgia. Pressure in eyes. Amaurosis; scalding lachrymation.
RANUNCULUS BULB - -blindness; mist before eyes; pressure and smarting in eyes, as from smoke. Pain over right eye; better, standing and walking. Herpes on cornea. Vesicles on cornea, with intense pain, photophobia, and lachrymation.
HYOCYAMUS - Pupils dilated, sparkling, fixed. Eyes open, but does not pay attention; downcast and dull, fixed. Strabismus. Spasmodic closing of lids. Diplopia. Objects have colored borders.