The German Society of Ophthalmology said that night blindness is a disease that affects the retina of the eye, noting that it occurs due to a lack of vitamin "A" or because of "glaucoma" (blue water) or "cataract" (white water).
The association explained that the symptoms of night blindness are:
-Deterioration of vision at night or in dim light
-Involuntary twitching in the eye
-Sensitivity to glare
-Redness
-Recurrent eye inflammation
-Corneal dryness
The emergence of gray bubbles on the white of the eye
If night blindness is caused by a deficiency of vitamin A, the treatment is based on supplying the body with it through foods rich in it, such as carrots, potatoes, peaches and apricots.
If the cause is glaucoma or cataract, the underlying disease should be treated.
Vitamin A
Vitamin A is not a single substance, but a whole group of so-called "retinoids", which are fat-soluble and perform many vital functions in the human body, which is why a deficiency of this vitamin can lead to dangerous consequences.
Vitamin A is an important component of the visual pigment in the retina, and its deficiency leads to poor vision in dusk and darkness, and this is a warning sign that this vitamin or “beta-carotene” is lacking, which is converted into vitamin A in the body.
Vitamin A also plays an important role in our immune system in what is called retinoic acid, where it regulates the function of T cells that recognize foreign bodies and B cells that produce our own antibodies. In addition, vitamin A is important for the mucous membranes, and thus helps protect against infections, so if you get sick easily, this may be a sign of a deficiency of this vitamin.
Where do you get vitamin A?
Vitamin A supplements should not be taken until after consulting a specialist, as they may have harm. With regard to smokers, taking vitamin A supplements increases the risk of lung cancer, according to studies, and for this reason, taking nutritional supplements should be avoided unless under medical supervision and guidance.
Where do we find vitamin A?
In addition to carrots, plants and animal products contain vitamin A or beta-carotene, such as:
-sweet potato
-gourd
-tomato
-Green Beans
-broccoli
-spinach
-eggs
-liver
cataract
Cataract is a disease in which a clouding of the lens of the eye occurs, which leads to a decline in the ability to see, and it is also called "cataract", white water or cataracts, and in most cases the "cataract" is associated with age.
And “cataract” is not an infectious disease, that is, it is not transmitted from one person to another, nor is it transmitted from one eye to another, and therefore it may occur in one eye or in both eyes. left eye.
With age, the lens of the eye loses its flexibility and becomes less transparent and thicker, and this leads to the scattering of light entering the lens instead of focusing it properly on the retina; The image is distorted.
Glaucoma
Glaucoma is one of the most common eye diseases. It is a disease that affects the nerve of the eye and leads to gradual damage to the nerve tissue, causing a reduction in the field of vision, and high pressure in the eye is a major factor in this.
Regression of vision means that vision on the edges of the field of vision is weakened, and as the disease progresses, this extends to the center of the field of vision.
The reason for the name "glaucoma" in the Greek is that the patient sees blue halos around the light source.
The causes of glaucoma vary according to its type. High pressure in the eye is a major cause, and this occurs as a result of an imbalance between the amount of fluid secreted inside the eye and its discharge.
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HEALTH UPDATE