Why is eyesight worse in winter than in summer?

1. The dry climate in winter will accelerate the evaporation of water.

It is windy in winter and the climate is dry. It is common sense that winter is dry. There is always lacrimal gland secretion on the eyes to ensure that the eyes are in a moist and safe environment. However, the dry climate in winter will accelerate the evaporation of water and expose the eyeball to the external environment for a long time. Water evaporates faster than it secretes, so it feels dry.

2. The sight distance is small, and the eyes cannot relax.

It's very cold in winter, so I seldom go out and stay indoors for a long time. If you often stay indoors, the sight distance is small and your eyes can't relax. And indoor activities, usually mainly reading books, watching TV, playing mobile phones and so on. These all increase the burden on the eyes, so when you use your eyes too much, it will lead to sore eyes.

3. Too strong reflection will hurt your eyes when it snows.

It will snow heavily in some areas in winter, and there is a white world everywhere. If the reflection is too strong, it will also hurt the eyes.

Winter is the season with frequent eye diseases. The weather is dry in winter, which is easy to cause dry eye. When the eyes are blown by the wind, there will be tears and trachoma in the eyes. Therefore, in winter, you must drink more water, eat more fresh fruits and vegetables, maintain a balanced nutrition, be careful not to use your eyes too much, don't stay up late, take more rest to protect your eyes, and go to the hospital in time for treatment in serious cases.

Extended data:

Take care of your eyes in winter;

1, pay attention to protect your eyes when the wind is strong.

It's chilly in winter, so don't let yourself face the wind. If it is windy outside, you can narrow your eyes a little without glasses. Don't open your eyes in the strong wind, lest you hurt your eyes.

2, reading and playing mobile phones should limit time.

Pay attention to eye health indoors. If you learn to read books and play games on your mobile phone, you should limit your time, don't stare at books or screens for a long time, keep blinking frequency, take a break in time after using your eyes for a period of time, watch some green plants, look at the distance or do eye exercises.

3. eat more foods rich in vitamin a.

There are many eye diseases in winter, which may be caused by some diseases or lack of vitamins. You can eat more foods rich in vitamin A, such as carrots and animal livers. You can also eat more fresh fruits and vegetables to replenish enough water.

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