What is night blindness? Which colour victim cannot differentiate? Is there any cure?

Question

Hi. Night blindness is a condition that makes it difficult to see in low light. The human eye got a very sophisticated system which can function from very dark to very bright light. But in the case of night blindness, the eyes fails to adapt to darkness. Night blindness can be an early sign of vitamin A deficiency, often the result of a diet lacking in vegetables containing beta-carotene, which the body can make into vitamin A. A lack of zinc can reduce retinol dehydrogenase, an enzyme needed to help vitamin A work in the eye. Zinc helps night blindness in those who are zinc-deficient. Most people don?t get enough zinc in their diets. Vitamin A is found naturally in many foods: cod liver oil, liver, sweet potato, carrot, broccoli, butter, kale, spinach, pumpkin, Cheddar cheese, egg, apricot, papaya, mango, pea, milk, tomatoes, seaweed Night blindness caused by nearsightedness, cataracts, or vitamin A deficiency is treatable. Corrective lenses, such as eyeglasses or contacts, can improve nearsighted vision both during the day and at night. *********Colour blindness is different from Night blindness! There are two major types of color blindness: those who have difficulty distinguishing between red and green, and who have difficulty distinguishing between blue and yellow.****************

Sucharitra Picasso · Accepted Answer

Hi. Night blindness is a condition that makes it difficult to see in low light. The human eye got a very sophisticated system which can function from very dark to very bright light. But in the case of night blindness, the eyes fails to adapt to darkness. Night blindness can be an early sign of vitamin A deficiency, often the result of a diet lacking in vegetables containing beta-carotene, which the body can make into vitamin A. A lack of zinc can reduce retinol dehydrogenase, an enzyme needed to help vitamin A work in the eye. Zinc helps night blindness in those who are zinc-deficient. Most people don?t get enough zinc in their diets. Vitamin A is found naturally in many foods: cod liver oil, liver, sweet potato, carrot, broccoli, butter, kale, spinach, pumpkin, Cheddar cheese, egg, apricot, papaya, mango, pea, milk, tomatoes, seaweed Night blindness caused by nearsightedness, cataracts, or vitamin A deficiency is treatable. Corrective lenses, such as eyeglasses or contacts, can improve nearsighted vision both during the day and at night. *********Colour blindness is different from Night blindness! There are two major types of color blindness: those who have difficulty distinguishing between red and green, and who have difficulty distinguishing between blue and yellow.****************