People with night blindness, who are sensitive to sunlight, can wear sunglasses when going out, and should actively seek treatment for night blindness. Night blindness refers to the blurriness or complete inability to see in dim light or at night, which makes mobility difficult. Night blindness can be categorized into congenital night blindness, acquired night blindness, and temporary night blindness. Congenital night blindness is mostly related to hereditary factors, where patients are born lacking the ability to synthesize rhodopsin, leading to night blindness. It is recommended to supplement vitamin A in appropriate amounts, and gene therapy is a potential treatment direction. Acquired night blindness is generally caused by diseases of the retina or other eye conditions, and it is recommended to actively treat the primary disease. Temporary night blindness is often due to a lack of vitamin A in the diet or due to some digestive system diseases affecting the absorption of vitamin A. It is advisable to supplement vitamin A as per medical advice and actively treat digestive tract diseases.