Is night blindness related to myopia?

Written by Li Zhen Dong

Ophthalmology

Updated on September 13, 2024

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Night blindness generally has little to do with myopia. Night blindness can be divided into congenital night blindness and acquired night blindness, caused by retinal dysfunction. Myopia makes distant objects appear blurry and near objects clear, primarily due to changes in the eye's axis. Night blindness does not involve changes in visual acuity or the eye's axis. Once night blindness occurs, one should actively seek an ophthalmological examination and receive proper treatment. Currently, the treatment for myopia mainly includes corrective glasses, orthokeratology (corneal reshaping therapy), and surgical treatments.

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Written by Li Zhuo

Ophthalmology

50sec

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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.

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Written by Tao Yuan

Ophthalmology

58sec

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What should be paid attention to in night blindness?

Night blindness is a common symptom in ophthalmology and can be caused by many reasons. Once night blindness occurs, patients need to promptly visit an eye clinic for a face-to-face examination to diagnose the cause, and then treat it based on the specific cause. The common causes include the following: First, it can be caused by late-stage glaucoma. Surgery is needed to reduce intraocular pressure to halt the progression of the disease; otherwise, it may lead to complete blindness. Second, it can be due to a deficiency of vitamin A, related to long-term poor diet and malnutrition. It often also includes symptoms such as dryness of the conjunctiva and softening of the cornea, which can be treated by taking vitamin A capsules orally. Third, it is caused by malnutrition of the rod cells in the retina. Currently, there is no effective treatment for this condition.

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Written by Wang Hui Zhen

Ophthalmology

1min 21sec

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What should I do if night blindness is afraid of sunlight?

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.

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Written by Li Zhen Dong

Ophthalmology

41sec

home-news-image

Is night blindness related to myopia?

Night blindness generally has little to do with myopia. Night blindness can be divided into congenital night blindness and acquired night blindness, caused by retinal dysfunction. Myopia makes distant objects appear blurry and near objects clear, primarily due to changes in the eye's axis. Night blindness does not involve changes in visual acuity or the eye's axis. Once night blindness occurs, one should actively seek an ophthalmological examination and receive proper treatment. Currently, the treatment for myopia mainly includes corrective glasses, orthokeratology (corneal reshaping therapy), and surgical treatments.

home-news-image

Written by Wang Hui Zhen

Ophthalmology

1min 45sec

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What will happen if night blindness is not treated?

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.