Night Blindness
Night blindness is the difficulty of seeing in low-light conditions. It’s one of the early and common signs of vitamin A deficiency. However, note that the latter is only one of the possible causes of night blindness. Other factors that may cause it are cataracts, diabetes, glaucoma, and myopia. The doctor will perform tests to determine the actual cause. It’s important to get the right treatment appropriate to the reason. If it’s due to vitamin A deficiency, increasing its intake could solve the problem fast. It may only take a few days to see an improvement in eyesight.
As mentioned, it will not let you see clearly as if you are seeing in the daylight. But instead, your eyes will adjust quicker in low light, making you see well. This is because vitamin A combines with eye protein called opsin in the dark, which makes the retina more sensitive in low light. For other causes of night blindness, the treatment may vary. For example, glaucoma can be treated with medication, laser, or surgery, while cataracts can be treated by removing it.
