Why do you feel so glaring when you suddenly turn on the lights in the middle of the night?

It's because the light is very dark at night, and people are always in the dark after sleeping, and if you suddenly turn on the light, your eyes can't stand it for a while, so you will feel particularly dazzling.

Because the eyes are already a dark environment at this time, and suddenly a strong light shines in, some of the senses of the eyes are not very good, so they will feel very dazzling.

Because your eyes have adapted to the dark environment, when there is a sudden bright light, it will feel very dazzling.

Yellow light is relatively soft and closer to natural warm light, and from this point of view, if the same brightness can be achieved, yellow light is still better than white light. The onset of myopia depends on many factors, and light is only one part of it. In addition to the spectrum, there should be a background light, ensure adequate illumination, and avoid strobes.

The human eye has an automatic process of adapting to the intensity of light, in the middle of the night in the dark, the pupil of the human eye is dilated as much as possible in order to capture the weak light to identify the surrounding environment, when the light is suddenly turned on, the pupil does not have time to contract, a large amount of strong light enters the eye, so I feel that the light is very dazzling. After a while, the pupils automatically contract, reducing the amount of light entering the eyeball, and it is no longer harsh.

And that's one of the subtleties of the eye, which is that the pupils of the human eye can be enlarged and narrowed in places that are darker so that they can absorb more light to see things clearly, and in places where there is more light, the pupils are narrowed to prevent too much light from entering.

Squint before turning on the light, and after a while your eyes get used to it, you can see things normally.

According to the analysis of traditional Chinese medicine, your symptoms are caused by liver and kidney deficiency and eye sensitivity to light, it is recommended to take Qiju Dihuang Pill and Liuwei Dihuang Pill for conditioning.

When people see in the dark, they need to synthesize a substance called rhodopsin (vitamin A is needed to participate in the synthesis). The synthesis of this substance takes a certain amount of time. This time is called "dark adaptation".

When a person walks from the light to the dark, rhodopsin begins to synthesize and passes.

After a minute or two, the eye will be able to see objects in the dark.

This is where vitamin A deficiency can lead to "night blindness". Rhodopsin cannot be effectively synthesized, and the "dark adaptation" cannot be completed.

In sleep, because the eyes are closed, the rhodopsis in the eyes is relatively abundant, and the strong light of the sudden light will make the eyes that are in the dark feel uncomfortable and feel the light is dazzling, and after a while, the rhodopsin decomposes, and the eyes will return to their original state.

It's not just pupil light adjustment. Pupil light adjustment can be completed in a very short time.

This is normal, it is a process by which the pupil adapts to light. Everyone has it, don't believe it, ask the rest of the family.

Hallucinations or dreams, if the door is still locked and someone else doesn't have the key.