Question

Which vitamin deficiency causes night blindness?

Hint:

Always remember: Eating orange and green vegetables is a simple way to prevent Vitamin A deficiency and support good vision.

Answer 1

Nyctalopia, or night blindness, is an ocular condition characterized by impaired vision in low-light environments.
A deficiency in Vitamin A is the most common etiology of nyctalopia, as this nutrient is essential for optimal visual function.
Vitamin A is instrumental in the synthesis of rhodopsin, a photoreceptor pigment in the retina critical for scotopic vision.
Insufficient Vitamin A levels lead to diminished rhodopsin synthesis, thereby compromising night vision.
Untreated Vitamin A deficiency can progress to serious ocular sequelae, such as corneal ulceration and irreversible blindness.
Dietary sources rich in Vitamin A encompass carrots, sweet potatoes, dark leafy greens, fish liver oils, and dairy products.
Maintaining adequate Vitamin A consumption through nutrient-dense foods is paramount for ocular well-being, particularly for pediatric and pregnant populations.