To protect your vision and prevent eye diseases, a multi-faceted approach is needed, and paying attention to nutrition can also help improve eyesight. In your daily diet, to prevent children from needing glasses too early, in addition to providing rich protein and vitamins, the following types of food are essential.
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1. Foods rich in Vitamin A
If there is a deficiency in Vitamin A, the regeneration of rhodopsin is slow and incomplete, leading to a prolonged dark adaptation time. In severe cases, it can cause night blindness. If Vitamin A continues to be deficient or insufficient in the diet, xerophthalmia may occur. This disease can further develop into corneal softening and corneal ulcers, and may also lead to corneal folds and Bitot's spots.
The best food sources of Vitamin A are various animal livers, cod liver oil, fish roe, poultry eggs, etc. The Vitamin A precursors in vegetables like carrots, spinach, amaranth, alfalfa, sweet potatoes with red flesh, pumpkin, and green bell peppers can be converted into Vitamin A in the body.
2. Foods rich in Vitamin C
Vitamin C can reduce the damage to the eye's lens from light and oxygen, thereby delaying the onset of cataracts. Foods containing Vitamin C include fresh vegetables and fruits such as bell peppers, tomatoes, lemons, kiwis, and hawthorns.
3. Hard foods
Regularly giving children foods with a certain hardness can increase the frequency and force of chewing, which can promote the development of a child's vision. This is because chewing can strengthen the facial muscles, including the eye muscles, giving them the powerful ability to regulate the lens and prevent the occurrence of myopia. Hard foods suitable for children include: carrots, fruits, cabbage, animal bones, legumes, etc. These foods are both durable for chewing and rich in nutrients, making them especially recommended.
4. Foods containing calcium
Calcium is a mineral element that we are quite familiar with and value highly, but most people's understanding of it is focused on promoting bone development and preventing children's rickets. Few people associate it with the development of the eyes. However, medical experts point out that a lack of calcium is one of the important causes of poor visual development and the formation of myopia.
The scientific basis for this is: the eyeball is like a small plastic sac filled with clear water. If calcium is deficient, its "hydraulic pressure" will fluctuate up and down, unable to maintain a normal state. This situation is like a light bulb that is on, which can easily be burned out by fluctuating voltage. If the eyeball lacks calcium, it can lead to abnormal development and become myopic.
Calcium-rich foods include: milk, soy products, fish and shrimp, animal bones, etc. It is also important to pair these with foods rich in Vitamin D, such as animal livers, egg yolks, and green vegetables, to increase the absorption and utilization of calcium.
5. Foods containing chromium
Chromium is also an essential mineral element for the human body. Its role in the development of the eyeball is to maintain the balance of its osmotic pressure; otherwise, it can lead to the lens bulging and protruding, increasing the eye's refractive power and causing myopia. According to expert calculations, children need about 50-200 micrograms of chromium daily.
Chromium-rich foods include: grains, meat, cheese, and egg yolks, which should be included more often in a child's diet.
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