Will staying up late worsen night blindness?

Written by Li Zhen Dong

Ophthalmology

Updated on September 04, 2024

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If night blindness is caused by congenital reasons, then staying up late generally does not significantly worsen it. If it is caused by acquired eye abnormalities, staying up late will noticeably exacerbate the occurrence of night blindness. Additionally, if it is caused by a deficiency in vitamin A, one should rest properly, reduce close-range activities, avoid staying up late, and supplement with foods or medications containing vitamin A. If the night blindness is due to eye-related causes, active treatment and regular follow-ups are recommended. If it is due to congenital reasons, currently there are no particularly effective treatments available.

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Written by Tao Yuan

Ophthalmology

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Can mild night blindness be cured?

Night blindness is a common ophthalmic disease caused by many factors. Its main symptom is difficulty seeing in dim environments, and it takes a longer time to adapt when moving from bright to dim surroundings. For mild night blindness, it is important to first identify the specific cause. Different causes lead to different treatments and outcomes. For example, night blindness caused by a deficiency in Vitamin A can be completely cured by taking oral Vitamin A capsules or by consuming foods rich in Vitamin A such as carrots and animal liver. Night blindness caused by malnutrition of the rod cells in the eye is incurable. For night blindness resulting from advanced glaucoma, treatment can delay and control the progression of the disease, but cannot reverse the damage already done to vision.

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Written by Wang Hui Zhen

Ophthalmology

1min 14sec

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What causes sudden night blindness?

There are many causes of sudden night blindness. Night blindness refers to blurry vision or even complete inability to see in low-light conditions such as nighttime, possibly even leading to difficulties in movement. Night blindness can be categorized into congenital, acquired, and temporary types. Congenital night blindness is mostly related to genetic factors, where the patient is born with a deficiency in synthesizing rhodopsin, leading to night blindness. Temporary night blindness is often due to a lack of Vitamin A in the diet, or due to some digestive system diseases that affect the absorption of Vitamin A. Acquired night blindness is usually caused by diseases of the retina or the eye itself. Therefore, if sudden night blindness occurs, it is recommended to go to a reputable hospital's ophthalmology department for comprehensive examinations such as visual acuity, intraocular pressure, slit lamp, dilated fundus examination, and if necessary, further tests like fundus fluorescein angiography to identify the cause and provide targeted treatment.

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Written by Li Zhuo

Ophthalmology

57sec

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Causes of Night Blindness

Night blindness generally falls into two categories. The first type is due to a deficiency in Vitamin A, which leads to abnormal metabolism of retinol, preventing the perception of low light and thus causing symptoms of night blindness. The other condition is retinitis pigmentosa, where the photoreceptor cells in our retina responsible for detecting light at night, mainly the rod cells, undergo premature apoptosis, resulting in poor light perception. Retinitis pigmentosa can be congenital, caused by genetic mutations or abnormalities, but it can also be secondary to other diseases. Conditions like choroiditis or choroid retinitis inflammation can lead to abnormalities in the rod cells, which can also result in night blindness. The specific causes need to be examined.

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Written by Tao Yuan

Ophthalmology

1min 1sec

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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.)

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Written by Tao Yuan

Ophthalmology

1min

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Does night blindness have anything to do with playing on mobile phones?

Night blindness is not related to using mobile phones. Night blindness can be caused by several reasons, with the common ones as follows: First, it can be caused by a deficiency in vitamin A, commonly seen in patients with long-term unbalanced diets and malnutrition. Vitamin A is an essential raw material for the synthesis of photosensitive substances in the retina. A deficiency in vitamin A can lead to abnormal retinal function, causing night blindness. This can be treated by taking vitamin A capsules orally or by consuming foods rich in vitamin A, such as animal liver and carrots. Second, it can be caused by retinitis pigmentosa, which is related to congenital developmental abnormalities. Currently, there are no effective treatments available. Third, it can be due to advanced glaucoma, where surgical treatment to lower eye pressure is needed to prevent and slow the progression of the condition.