I would like to ask what it is like for people with night blindness to experience at night

Don't scare me, I'm cataractic......

I didn't hit my eyes.

1 Pinyin 2 Annotations.

Attached: 1 **Acupuncture points for night blindness.

yè máng zhèng

Night blindness is a severe manifestation of decreased sensitivity to low light and prolonged dark adaptation*. It is mostly caused by VA deficiency, and there are also people with congenital night blindness. The main symptom is almost normal vision during the day and blurred vision at dusk.

Because some birds such as sparrows are born with night blindness, they are also called "finches", "finch blindness", and "finch eyes". The main mechanism by which VA deficiency causes night blindness is the presence of cone cells on the retina that produce color sensation in bright light and rod cells that produce scotopic vision in low light.

One of the main factors that determine the quality of scorea and the speed of dark adaptation is the concentration of rhodopsin (rod cytochrome) in the blood. The synthesis and decomposition of rhodopsin are regulated by light; There is more decomposition than synthesis under strong light, and more synthesis than decomposition under low light, so that its concentration gradually reaches a certain level required for light sensitivity, and the time taken to reach this level is the time of dark adaptation. Because VA is the "raw material" of rhodopsin, when VA is deficient, rhodopsin cannot be replenished enough, resulting in a decrease in blood concentration, resulting in rod cell insufficiency, decreased sensitivity to weak light, prolonged dark adaptation time, etc., and night blindness symptoms.

Supplementation with a moderate amount of VA can be effective in ** night blindness caused by VA deficiency. As early as the Tang Dynasty, China has used pig liver and other VA rich foods ** "Sparrows".

Wind pool faintness, salivation, syncope, shoulder and back pain, dizziness, cold and flu, night blindness, stiff neck, urticaria, erysipelas, aurmoa, amenorrhea, epilepsy, hypertension, ,..

Impotence, myopia, keratitis, facial nerve paralysis, facial muscle spasm, forehead pain, night blindness, ophthalmic diseases, etc., for trigeminal neuralgia, eye fatigue and other symptoms.

Extracanthal juvenile myopia, cataract hall, glaucoma, vision loss, dacryocystitis, night blindness, etc. The alias of the pupil: Outer canthus ("The Yellow Emperor's Neijing Su Wen Qi Fu.

Pupil juvenile myopia, cataract, glaucoma, vision loss, dacryocystitis, night blindness, etc. The alias of the pupil: Outer canthus ("The Yellow Emperor's Neijing Su Wen Qi Fu. Frontroom.

There are two types of night blindness, one is temporary night blindness caused by vitamin A deficiency, and the other is congenital inheritance. When you wake up in the morning, you have normal vision during the day and can't see clearly at night, but if your condition worsens, is it possible to lose your sight completely during the day?

1. Acquired night blindness does not cause blindness.

Acquired night blindness is mostly caused by a lack of vitamin A, or some digestive diseases that affect the absorption of vitamin A.

2 Congenital night blindness can lead to blindness.

The symptoms of congenital night blindness are night blindness in the early stages, that is, you can see things during the day, but you can't see things clearly at night. In the early stage, the visual field is slowly narrowed, and in the late stage, a tubular visual field is formed, and only the front ** part of the things is seen, and finally it affects the macular area and causes blindness.

At present, Western medicine has no effective way to treat congenital night blindness, and Chinese medicine can help control and stabilize the condition through syndrome differentiation.

3. How to prevent blindness in patients with night blindness.

High vitamin A diet.

Vitamin A is an important component of rhodopsin, and proper supplementation of foods rich in vitamin A can increase the content of rhodopsin and help restore light sensitivity. Common foods rich in vitamin A are: animal liver, eggs, milk, carrots, etc.

Use your eyes wisely. Excessive eye use will increase the consumption of vitamin A, especially for people who like to play with mobile phones, watch TV, and read books at night, which will not only make the eyes feel tired, but also aggravate the condition of night blindness. In addition, when the condition of patients with night blindness is severe, it is best to close their eyes and rest, and do not move around at will, so as to avoid accidents due to invisibility.