What is night blindness?
Nyctalopia is a type of eye condition. (1)
Nyctalopia is also known as night blindness. (1)
What does night blindness do?
people with night blindness experience poor vision at night or in dimly lit environments. (1)
What causes night blindness?
A few eye conditions can cause night blindness:
nearsightedness (1)
cataracts (1)
retinitis pigmentosa (1)
usher syndrome (1)
vitamin A deficiency can also lead to night blindness (1)
Can night blindness be reversed?
BEFORE: A 55-year old woman developed night blindness over the course of two years. She was fine in the daytime but almost blind in the dark. She had a history of Crohn’s disease. She smoked 10 cigarettes daily and drank 5 to 6 units of alcohol weekly. She did not eat fruit. She ate lots of vegetables. Doctors gave her 50,000 IUs of vitamin A by injection to bypass her digestive system. After 18 months her night vision dramatically improved. (2, 3)
Resources
1. https://www.healthline.com/health/vision-night-blindness
2. https://alsearsmd.com/2018/01/reverse-night-blindness/
3. https://www.journalofoptometry.org/en-reversible-night-blindness-a-articulo-S1888429613000034
