Which of the following diseases is caused by the deficiency of Vitamin A?
Show answer & explanation
Correct answer: A
Explanation
The correct answear is option A i.e Night blindness.
Night blindness (nyctalopia) makes it hard to see well at night or in poor light caused by the deficiency of Vitamin-A. An insufficient amount of vitamin A in the body affects the production of rhodopsin, the necessary pigment for night vision.
Another cause of night blindness is a deficiency of Retinol,or vitamin A1, found in fish oils, liver and dairy products.
Symptoms of night blindness include-
- Difficulty seeing in the dark.
- Blurry, or cloudy vision when driving in the dark.
- Trouble seeing stars on a clear night.
- Eye pain
- nausea
- vomiting
- sensitivity to light.
| Scurvy | Vitamin C deficiency,can lead to bleeding gums, loosened teeth and bleeding under your skin. |
| Marasmus | Severe form of malnutrition — specifically, protein-energy undernutrition. It results from an overall lack of calories. Marasmus is a deficiency of all macronutrients: carbohydrates, fats, and protein. |
| Kwashiorkor | A protein deficiency, diseses. |