Question

Which of the following statements is FALSE? Which of the following statements is FALSE? a.Vitamin A supplements can sometimes cure nyctalopia because vitamin A can be converted into retinal. b.Nyctalopia affects vision in the fovea centralis, resulting in impaired vision. c.Retinitis pigmentosa is a disorder in which the discs released from rods are not properly phagocytized. d.All of the listed responses are false.

Answer 1

Answer:

Correct option is (B). Nyctalopia affects vision in the fovea centralis, resulting in impaired vision.

Explanation:

Nyctalopia which is also known as night blindness, in this condition it's difficult to see in relatively low light. It can cause by two types one is from birth, and another is injury or vitamin A deficiency which is also called as malnutrition.

It is caused by the loss of normal rod function in retina, and loss their ability to response in the light. The outer part of retina is made up of more rods compare to cones, loss of peripheral area repeatedly results in night blindness.