What will happen if night blindness is not treated?

Written by Wang Hui Zhen
Ophthalmology
Updated on September 26, 2024
00:00
00:00

Night blindness, if left untreated, can progress slowly in some cases and more rapidly in others, potentially leading to blindness quickly. Therefore, it is recommended to visit a hospital for diagnosis and targeted treatment if night blindness occurs. Night blindness refers to the blurriness or even complete inability to see in low light conditions or at night, causing difficulty in movement. Night blindness can be categorized into congenital night blindness, acquired night blindness, and temporary night blindness. Congenital night blindness is mostly related to genetic factors. Patients are born with a deficiency in synthesizing rhodopsin, which leads to night blindness. It is recommended to supplement with Vitamin A as per medical advice, though the treatment effectiveness for congenital night blindness is generally poor, and gene therapy is considered a direction for the future. Acquired night blindness is often caused by diseases intrinsic to the eye, and it is advisable to actively treat the primary disease. Temporary night blindness is mostly due to a lack of Vitamin A in the diet or due to certain digestive system diseases that affect the absorption of Vitamin A; hence, it is recommended to supplement Vitamin A as advised by a doctor.

Other Voices

doctor image
home-news-image
Written by Li Zhuo
Ophthalmology
50sec home-news-image

Can night blindness see clearly during the day?

Night blindness is mainly due to two types of cells on our retina: cone cells and rod cells. Rod cells are responsible for vision at night, while cone cells are responsible for vision during the day and are crucial for sharp vision. In cases of night blindness, there are issues with the rod cells, but patients also have problems with their cone cells. Therefore, not only is their nighttime vision unclear, but their daytime vision is also worse than that of an average person. Although they can see during the day, the clarity is impaired. This condition is primarily due to a genetic anomaly, often involving a chromosomal abnormality. It is recommended that patients supplement with B vitamins, such as lutein.

doctor image
home-news-image
Written by Wang Hui Zhen
Ophthalmology
1min 32sec home-news-image

Can night blindness be improved by wearing glasses?

Generally speaking, it is difficult to improve night blindness by fitting glasses. If the patient already has tunnel vision, they can try wearing special glasses to enhance the visual quality of the remaining vision. Night blindness refers to blurred vision or even complete inability to see in the dark or dimly lit environments, causing difficulties in movement. Night blindness can be categorized into congenital night blindness, acquired night blindness, and temporary night blindness. Congenital night blindness is mostly related to congenital genetic factors, where patients are born lacking the function to synthesize rhodopsin, leading to night blindness. Currently, there is no specific treatment, but it is advisable to supplement vitamin A as per medical advice. Acquired night blindness is often due to diseases of the eye itself and it is recommended to actively treat the primary disease. Temporary night blindness is mostly due to a lack of vitamin A in the diet, or diseases of the digestive system that affect the absorption of vitamin A, and it is recommended to supplement vitamin A as per medical advice and treat digestive tract diseases, which can mostly improve the condition.

doctor image
home-news-image
Written by Tao Yuan
Ophthalmology
50sec home-news-image

Patients with night blindness are lacking something.

Night blindness is a common symptom in ophthalmology, referring to a condition where patients cannot see clearly in dim environments. Night blindness can be caused by various reasons, among which vitamin A deficiency night blindness occurs due to the patient's long-term picky eating or malnutrition, leading to insufficient intake of vitamin A. Vitamin A is an essential raw material for the synthesis of photosensitive substances in the retina, and its deficiency can lead to night blindness. Night blindness caused by retinal pigment degeneration, malnutrition of rod cells, and late-stage glaucoma does not involve a lack of nutritional elements in the patient's body. Instead, it results from damage to the rod cells in the retina or the nerve fiber layer, which prevents them from sensing light stimuli in dark environments.

doctor image
home-news-image
Written by Tao Yuan
Ophthalmology
1min 1sec home-news-image

Is it useful to wear glasses for night blindness?

Patients with night blindness cannot improve their symptoms by fitting glasses. Fitting glasses is mainly used to correct refractive errors, such as myopia, hyperopia, astigmatism, etc., whereas night blindness is not caused by refractive errors. It is usually caused by the following reasons: First, it may be caused by retinal pigment degeneration, for which there is currently no effective treatment. Avoiding strong light stimulation can help delay the progression of the disease. Second, it may be caused by late-stage glaucoma, which requires treatment with medication or surgery to reduce eye pressure in order to stop and delay the progression of the disease. Third, it may be caused by malnutrition of the rod cells, related to genetic factors, for which there is also no effective treatment available. Fourth, it may be caused by a lack of vitamin A, which can be treated by taking vitamin A capsules orally. (Please follow medical advice when using medication.)

doctor image
home-news-image
Written by Wang Hui Zhen
Ophthalmology
1min 11sec home-news-image

Does night blindness also cause a decrease in vision during the day?

Patients with severe night blindness also experience a decline in vision during the day. Night blindness refers to the blurriness or complete inability to see in the dark or dimly lit environments, causing difficulties in movement. In severe cases, vision can also decline during the day. Night blindness can be categorized into congenital, acquired, and temporary night blindness. Congenital night blindness is mostly related to congenital genetic factors, where patients inherently lack the ability to synthesize rhodopsin, leading to night blindness. Acquired night blindness is often due to diseases of the retina or other eye diseases, and it is recommended to actively treat the primary disease. Temporary night blindness is mostly due to a lack of Vitamin A in the diet, or due to certain digestive system diseases affecting Vitamin A absorption, and it is advised to supplement Vitamin A and other treatments as prescribed by a doctor.