When did Eyes Evolve?

The eye (also known as the eye, the eye) is an organ that can sense light. The simplest eye structure can detect the brightness of the surrounding environment, and the more complex eye structure can provide vision. Compound eyes are usually found in arthropods (such as insects), and usually consist of many simple small eyes and produce an image (not the multi-image usually imagined). In many vertebrates and some molluscs, the eye images by projecting light onto a light-sensitive retina, where light is received and converted into signals and transmitted to the brain through the optic nerve. The eyes are usually spherical, filled with transparent gel-like substances, a lens for focusing, and usually an iris that controls how much light enters the eye.

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Eyes are human and animal

The human eye is approximately spherical and is located in the orbit. Normal adults have an average anterior-posterior diameter of 24mm.

Whenever vision loss or abnormality occurs, doctors should always pay attention to eye hygiene to protect eyes and prevent myopia. So what aspects should we pay attention to when using eye hygiene?

1. Reasonable ambient light

   Bright and soft light is very important for eyesight. On the contrary, if the light is not good (too bright, too dark, glare, reflection, etc.), especially when studying with high eye intensity, the ambient light in work and life is not suitable, it will be obvious. Affects vision. For this reason, the country has set strict standards for the requirements of light illumination in different indoor occasions (for example, the illumination in reading / writing in the study> 300 Lux), but the average person usually does not have so much about the ambient light illumination (brightness) and human vision knowledge. If you really ca nt judge home

   The eye is not only our "viewfinder" for observing the world. In traditional Chinese medicine (traditional Chinese medicine), the eye is also a window into the body's health. Many problems can be reflected through the eyes. Dr. Smith, chief investigator at the National Eye Institute, said the eyes reflect your health.

   1. Eye congestion: If your eyes are painful, you need to see a doctor to see if they are infected with a disease called scleritis. If only one eye is affected, a serious problem may occur.

   2. Swelling of the eyes: Swelling of the eyes may indicate a problem with the thyroid gland.

   3 Eyelid drooping: Most of the drooping eyelids are a sign of aging. If the drooping eyelids of only one eye are drooping or even swollen and painful, you need to see your doctor as there may be serious problems.

   4 Pupil asymmetry: Sometimes congenital, but when the volume of one of the pupils changes, it may indicate a problem with the nerves of the pupil or a brain tumor.

   5. There are white spots on the rainbow of the eyeballs: it may be a corneal ulcer, usually caused by wearing contact lenses. See a doctor immediately.

   6. Itching, redness, and tears: These signs may show allergies, try taking medication and

   Eye Diet Nutrition

   Nutritional intake should be balanced, not partial eclipse. Special attention should be paid to the intake of vitamin B (germ rice, oatmeal yeast).

   Deficiency of essential fatty acids, vitamins A, K, E, and B vitamins can reduce the body's tolerance to radiation. It should be appropriately used in the diet, such as milk, eggs, liver, cauliflower, cabbage, eggplant, lentils, carrots, Cucumbers, tomatoes, bananas, apples, etc. Brassica vegetables such as rape, greens, mustard, cabbage, and radish are not only delicious dishes common on people's tables, but also have the function of preventing radiation damage.

   Lutein-protects the eyes

   The main pigment components of the retina: Lutein and zeaxanthin constitute the main components of vegetable pigments such as vegetables, fruits, flowers, etc., and are also the main pigments in the macular region * of the retina of the human eye. Human eyes contain high amounts of lutein. This element cannot be produced by the human body and must be supplemented by ingesting lutein. Without this element, eyes will become blind.

   Protect the eyes from light damage, delay the aging of the eyes and prevent pathological changes: ultraviolet rays and blue light in sunlight will enter the eyes and generate a lot of free radicals. The outer layer of fat in the macular region is particularly vulnerable to free radical oxidation, so this area is extremely vulnerable Degeneration occurs, leading to cataracts and even cancer. Ultraviolet rays are generally filtered by the cornea and lens, but blue light can penetrate the eyeballs directly to the retina and the macula. Lutein in the macula filters out blue light like a filter to avoid damage to the eyes by blue light.

   Fatigue food

   Black bean walnut milk: 1 spoon of black bean flour, 1 spoon of walnut kernel puree, 1 packet of milk, 1 spoon of honey. 500 grams of black beans, fry until cold, grind to powder. 500 grams of walnut kernels, stir-fry, remove the clothes, and mash them until they are cold. Take 1 spoon of each of the above two foods, pour 1 cup of boiled milk and add 1 spoon of honey, which can strengthen the intraocular muscle strength, strengthen the regulating function, and improve the symptoms of eye fatigue.

   Lycium barbarum porridge: 5 grams of wolfberry, 5 grams of mulberry, 5 grams of yam, 5 red dates, 100 grams of japonica rice. Boil the above ingredients into porridge. If the visually fatigued person can take two meals a day in the morning and evening and take it for a longer time, it can not only eliminate the symptoms of eye fatigue, but also strengthen the physique.

   Chrysanthemum tea: Chrysanthemum has a very good effect in treating eye fatigue and blurred vision. In addition to smearing the eyes to eliminate puffiness, it can also relieve the symptoms of eye fatigue. If you drink three to four cups of chrysanthemum tea daily, it will also help restore vision.

   About Vitamins:

   In summary, vitamins that are good for the eyes, A and E in fat-soluble vitamins, and B and A in water-soluble vitamins are all important. However, the eye supplement is enough. The concept of supplementing with more vitamins is wrong. Therefore, it is better to adjust your diet with vitamin pills. On the one hand, you can avoid side effects caused by excessive vitamins. On the one hand, you cannot eat happily and healthily.

   Vitamin A is mainly found in foods such as egg yolk, milk, cod liver oil, and yellow and green vegetables, especially in yellow and green vegetables. All kinds of carotene and carotenoids are more abundant, such as tomatoes, carrots, papaya, Qingjiang Vegetables, etc. are vegetables that are very helpful to the eyes

   Vitamin E is mainly stored in nuts and wheat germs, but when supplementing vitamin E, pay special attention to the level of uric acid to avoid gout. Vitamin B group, which is rich in milk, lean meat, eggs and yeast products. Special mention should be made of nutrient sugar, which is rich in vitamin B1, which is good for neurological diseases.

   Finally, vitamin C is the highest in dark green or yellow-red vegetables and fruits, such as guava, lemon, citrus, etc. The nutritional content of these fruits is easily destroyed, and raw food is preferred.

   About drinking tea:

   Here to help you find several kinds of tea that are most suitable for the computer family, not only can help you fight against radiation damage, but also protect your eyes and anti-irritability!

   Mung Bean Coix Seed Soup: Mung Bean can clear heat and detoxify, diuretic and swell, Coix Bean can strengthen the spleen and relieve diarrhea, lighten up Qi. For those who often need to stay up late or are upset, dry mouth, constipation, acne, In addition to eating more vegetables and fruits and replenishing water, eating mung bean barley soup as a snack is very helpful to relieve heat.

   Green tea: Green tea is the most popular health drink, because it contains powerful antioxidants catechol and vitamin C, which can not only remove free radicals in the body, but also make the paranephric cortex secrete hormones that fight tension. Of course, the small amount of caffeine contained in green tea can also stimulate the central nervous system and boost the spirit. It is best to drink during the day to avoid affecting sleep.

   Chinese wolfberry tea; Chinese wolfberry is rich in beta-carotene, vitamin B1, vitamin C, calcium, and iron. It has the effects of nourishing the liver, replenishing the kidney and clearing the eyes, because it has its own sweet taste, whether it is tea or raisins. Coming to eat has a lot to help the computer family's eyes soreness, fatigue, and deepened vision problems.

   Chrysanthemum tea: It has the effect of clearing the eyes and clearing the liver. Some people simply drink chrysanthemum and wolfberry together, or use honey chrysanthemum tea to relieve liver and relieve depression.

   Cassia tea: Cassia tea has the effects of clearing heat, eyesight, nourishing the brain, relieving liver qi, and strengthening bones and bones. If you have constipation, you can also drink it after dinner, which is very effective for treating constipation.

   Eucommia ulmoides tea: Eucommia ulmoides blood and strengthens bones and bones. It is helpful for sitting for a long time, although back pain is very helpful, both men and women can drink it. If female friends can take it with Siwu Tang at the end of the physiological period.

   Food eye protection is economical

   Eat foods that are good for your eyes and help protect your eyes. For example, deep-sea fish contains a large amount of DHA, which can make the eyes and retina develop healthy, and prevent lesions and cataracts: animal liver, blueberries, and nuts can be very good at anti-aging, eyesight, and optic nerve fatigue.

   Put bananas on the computer table: If your eyes are dry and painful, it is necessary to keep a few bananas on the computer table. The potassium in bananas can help the body excrete excess salt, allow the body to reach a potassium and sodium balance, and relieve eye discomfort. In addition, bananas contain a large amount of beta carotene. When the body lacks this substance, the eyes will become painful, dry, dull eyes, and dehydrated. Eating more bananas can not only reduce these symptoms, but also It relieves eye fatigue to a certain extent and prevents premature aging of eyes.

   Milk washing eyes to relieve fatigue: Fold the gauze into small pieces, completely soak in the detoxified milk, and cover the eyelids for 20-30 minutes, which can enhance the vitality of the eye muscles and relieve fatigue.

   Drinking tea and protecting the eyes is correct: wolfberry can clear the liver and eyesight, and use wolfberry + chrysanthemum hot water to drink and make eyes easy and bright. Put a cup of wolfberry chrysanthemum tea on your desk, and naturally protect your eyes when drinking, why not?

   Eye Moisturizer

   On the surface of the eyeball, there is a thin layer of tear film that acts as a lubricant, which keeps refreshing with blinking, and keeps the eyes moist. If the air is dry or fully focused, after about 10 seconds, dry spots will appear on the tear film, and the surface of the eyeball will become more and more dry. So under normal circumstances, blink 10-10 times per minute. When you concentrate on reading or you are too dizzy to operate the computer, the blink frequency will be significantly reduced to about 5 times per minute. Because of the dryness of the eyeballs, it is easy to bruise when the eyes are open and closed between the cornea and the eyelids, which can cause dry eyes, fatigue, discomfort, inflammation and pain, forming dry eye. If not taken seriously, corneal ulcers and scars may occur, eventually leading to a decrease in vision.

   Paying attention to eye health and improving the quality of life should become a topic that cannot be underestimated. However, it is a bit difficult for people who are keen to surf the Internet or watch TV to alleviate the insensitivity phenomenon. So, can we develop an artificial tear to protect the eyes? Scientists have made a useful exploration of this. They have developed a sterilized eye drop that mimics natural tears. It has the properties of natural tears, can be combined with tears, and has a mild, rapid and continuous relief of eyeball dryness, allergies and irritations, and can replace the tear film. Eliminates eye burns, fatigue and discomfort.

   Eye Injury First Aid

   The eyes are the window to our soul, so we must take care of them. Here's how to rescue your eyes: If you suspect a head injury, foreign objects get into your eyes, or chemicals spill into your eyes, you should call the emergency number.

   If there is blood in the eyes, cover the eyes with a clean cloth and take the patient to the hospital.

   If the eye has active bleeding, raise the patient's head above the heart, cover the eye with a clean cloth and take him to a nearby hospital.

   Note: If you suspect head, neck, or back injuries, do not move the patient and call the emergency number.

   Chemicals splashing into eyes

   Note: Do not waste any time. Rinse your eyes with water immediately, and make sure water enters under both eyelids. Do not treat the eyes with anything other than water. Do not let the patient wipe their eyes.

   1. Wash eyes with water. If you can't find a faucet, you can rinse your eyes with water in a cup for 15 minutes and make sure water gets into the inner corners of the eyes. Rinse the eyes, keep the affected eyes open and rinse with flowing water for at least 15 minutes, and let the water enter the eyes first and then flow out of the eyes. If your eyes are damaged, wash your eyes with water.

   2. If the patient wears contact lenses, he should be removed.

   3. Cover the affected eye. Cover the affected eye with a clean cotton cloth after rinsing, and cover the eyes with a bandage to reduce the movement of the affected eye. If possible, identify the chemicals that burn your eyes, and at least tell your doctor whether the chemicals are wet or dry.

   Foreign objects embedded in the eyes:

   Note: Do not try to remove foreign objects that are embedded in your eyes. If the foreign object is large, apply a hole in a paper cup and place it on your eyes to support the foreign object, and fix the paper cup. Cover the other eye with a cloth to avoid movement of the affected eye. If the foreign object is small, cover your eyes with a cloth and fix it loosely.

   1. Wash your hands.

   2. Looking for foreign objects. Have the patient roll their eyes slowly so that they can find foreign objects. Note: Do not let the patient wipe their eyes.

   3. Promote patients to tears. If you find a foreign body, gently pull the upper eyelid down to cover the lower eyelid. This will make them cry and may flush out foreign objects.

   4. Remove visible foreign objects. If the foreign body cannot be washed out by tears, rinse with running water or use a clean cloth to remove the foreign body. Patients can also blink in the water. Once the foreign body comes out, the patient should remove the contact lens. Note: Do not use cotton or other items to get foreign objects. Do not take foreign objects from the iris or pupil.

   5. Remove the foreign body in the lower eyelid. If foreign matter is found in the lower eyelid, rinse it with clean water or use a clean, damp cloth to remove the foreign body. Once the foreign object is removed, the patient should remove the contact lens. Take the foreign body from the lower eyelid, let the patient look upwards, then pull down the lower eyelid to remove the foreign body with a clean damp cloth. Note: Do not use cotton for foreign objects.

   6. Remove the foreign body in the upper eyelid. If no foreign body is found in the lower eyelid, the upper eyelid should be opened. If foreign objects are found at this time, rinse them with water or remove them with a clean, wet towel. Once the foreign body is removed, the upper eyelid should be reset. And told the patient to remove the contact lenses. Note: Do not use your hands or cotton to get foreign objects. Raise the upper eyelid. Ask the patient to look down, place a cotton swab on the eyelid, and pull the eyelid upward to fold the upper eyelid above the cotton swab.

   7. If necessary, bandages should be applied to cover both eyes and the patient should be taken to the hospital. If the foreign body is not found or removed, or the patient has obvious pain or visual impairment after removing the foreign body, cover the eyes with a clean cloth, bandage and fix it, and send to the hospital for treatment. Cover your eyes. Cover the affected eye with a clean cloth and wrap the patient's head with another cloth so that both eyes are covered.

   Eyes reading

   For a young child, because bedtime always comes too early, there seems to be a lot of night time in life. But even if the possibility of falling asleep is slim, parents will insist that their children turn off the lights and go to bed. In this situation, many children read books with a flashlight under the covers. If these children have read some stories about ancient times, they may have read that the ancients could only read by candlelight, but their eyesight seems to be good. Is it that our parents are protecting our eyes too much?

   The findings published in the British Medical Journal show that reading in low light for a short time will not hurt the eyes immediately, but it will cause visual fatigue, and reading in low light for a long time will cause excessive adjustment of the eyeball and further cause abnormal eye development, which will cause myopia. First, rod-shaped and cone-shaped cells on the retina began to produce more light-sensitive substances that could detect the light source and pass it to the brain. Second, the iris muscles relax, causing the pupils of the eyes to become very large, allowing the eyes to collect as much light as possible. To do this, the iris and muscle contraction control the shape of the pupil so that the image can continue to focus on the retina.

   If you read in low light, the visual muscle receives a lot of mixed signals: relax to collect more light, but at the same time, shrink to keep the image in focus. Focusing becomes very difficult when the subject is not getting enough light. Because the contrast between the words and the page is not obvious enough, the ability of the eyes to distinguish visual details is reduced. This ability is often called vision. The eyes need to work harder to recognize the words on the page, causing eye muscle fatigue. When the eye works like this for a long time, it becomes tired like other muscles. This fatigue can have many adverse effects on the eyes, including eye pain, dry itching, and blurred vision. If these symptoms do not disappear after stopping high-intensity eye movements, then you should see an ophthalmologist in time, you may encounter potential eye problems, such as myopia.

   Conclusion: Although reading in low light for a short time may have a small effect on vision, there are some methods to avoid visual fatigue when reading, such as frequent blinking. Of course, you should try to avoid reading / writing in poor light. If you are not sure whether the brightness of the light is appropriate, you can use the eye protection light pen to do some tests.

   Eye using computer

   First, the brightness of the display itself must also be appropriate; there must be a suitable background light in the computer room (the contrast with the brightness of the display does not exceed 1: 8).

   The second is that the sitting position should be correct and comfortable during operation, and the distance between the eyes and the screen should be 40-50 cm, so that both eyes are upright or gently look down at the phosphor screen, which can relax the neck muscles and reduce the area of the eyeballs exposed to the air. To the lowest. Avoid continuously operating the computer for a long time. You should rest for about 10 minutes after operating the computer continuously for 1 hour.

   Third, the computer screen settings must be reasonable

   Desktop-> Right-click-> Properties-> Appearance-> Advanced-> Project Selection (Window) Color 1 (L) Selection (Other)

   Change the hue to: 85; saturation: 123; brightness: 205

   -> Add to custom color-> Select in custom color, click OK->

   Make sure that all the documents are no longer dazzling black letters on white background, but very soft red bean paste. This hue is the color that my ophthalmologist configured my window. It is really comfortable and long-term use will effectively relieve eye fatigue and protect eyes.

   Eye protection at work

   First, natural eye protection is simple and convenient

   Keep intermittent breaks at work: If you use the computer for 6 to 8 hours continuously, you should take a break every 1 to 2 hours and keep your eyes away from the computer for 10 to 15 minutes. After working for 1 hour, it is best to leave the computer screen and stare at the distant target until it is clear Hold for another 10 seconds. If you are very busy at work, you can use the time of answering the phone and going to the bathroom to close your eyes and alleviate the fatigue of your eyes.

   Blinking in a hurry: The blinking action can promote the secretion of tears in the eyes, and evenly apply the tears containing many ingredients on the surface of the eyeballs to keep the eyes moist. Many people stare at the computer screen for too long because they are too focused on their work. Blinking your eyes a few times helps clean the eye surface and is equivalent to giving your eyes a massage.

   Taking a Breath at Work: Does Breathing Help Your Eyes? Of course. According to a survey, many people instinctively slow their breathing rate because they are too focused on the computer, and inhaling can speed up blood circulation and relieve eye fatigue.

   Persist in massage to relieve fatigue: When you look at the data or during the meeting, use your hands and thumbs to gently rub the under eyebrows and the outer upper corners of the eye sockets; you can also use the index and middle finger belly to gently push from the inside to the temple to the temple, Repeat 5-6 times. Long-term adherence can not only relieve sore eyes but also improve vision.

   Second, the medicine is fast and ophthalmology

   For office workers who sit and work in front of computer screens for a long time, using eye drops reasonably is a good way to relieve eye fatigue. Among many eye drops, artificial tears and nutritious eye drops are very effective in alleviating dryness and fatigue of the eyes.

   Common Type 4 Eye Drops

   1. Artificial tears are a type of eye drops widely recommended by ophthalmologists. They mimic human physiological tears and can replenish the eyes with moisture, moisten the surface of the eyes, and produce a mucus solution to cover the surface of the eyes, thereby protecting the eyes and improving dryness of the eyes, Discomfort and foreign body sensation. There are two types of artificial tears on the market: water-based and gel-like. Water-based artificial tears have a short retention time on the surface of the eyeball and require frequent use. Gel-like artificial tears have a high viscosity and can increase eyes. Internal residence time, reducing the frequency of medication. For professional women facing computer work every day, artificial tears are a good choice.

      Dosage: One per day, 3-4 times a day is appropriate.

   2. Such eye drops containing moisturizing nutrients have the effects of cooling and itching, alleviating visual fatigue, promoting eye nutrition, and keeping eyes moist. The significant advantage is that it can relieve dryness, astringency, itching, pain, swelling and foreign body sensation. These eye drops have different water contents due to different brands, so you should choose the one that suits you according to the specific characteristics of your eyes.

      Dosage: Generally, 1 to 2 drops into the eyelid each time, 3 to 4 times a day is appropriate, and the eyes need to be closed for a while after the drop.

   3. Such antibiotic-containing eye drops are more effective in treating bacterial infections. Generally used for trachoma, conjunctivitis, keratitis, blepharoplasty and so on. The advantage is that the sterilization ability is relatively strong, and it can fight against eye infections.

      Dosage: Generally, 1 to 2 drops into the eyelid each time, 3 to 5 times a day is appropriate, or as directed by your doctor.

   4. Such eye drops containing glucocorticoids have better anti-inflammatory effects. Can be used with antibiotic ophthalmic drugs for conjunctivitis, keratitis, scleritis, superficial scleritis, iridocyclitis, postoperative inflammation, etc. The significant advantage is that the anti-inflammatory ability is relatively strong. After dripping into the eye, the inflammation is eliminated quickly.

      Dosage: Generally, 1 to 2 drops into the eyelid each time, 3 to 4 times a day is appropriate, or as directed by your doctor.

   How to use eye drops

   1. The scientific operation method is to gently pull up the lower eyelid, drip the medicine into the lower conjunctival sac, and then drip it at the corner of the eye, avoid directly dripping into the pupil, gently close the eye for a few seconds, and gently press the inner corner of the eye after dripping the medicine to prevent Eye drops flow into the throat through the nasolacrimal duct and cause adverse reactions.

   2. Use as soon as possible after opening. Some eye drops cannot be used for more than 1 month after unpacking. Even if they are stored well, they should be discarded 3 months after unpacking. Eye drops should not be used as soon as they do not settle or discolor.

   3. Use it at intervals of 5 minutes, and use more than two eye drops at the same time. The eyelids should be dropped at least 5 minutes. Because different brands of eye drops contain different ingredients, if they are dropped into the eye at the same time, the effects of the medicine may cancel each other out or a chemical reaction may occur, causing unnecessary damage to the eye.

   4. The number of drops in a day should be read carefully before the use of the eye drop instructions, and the number of drops into the eyelid every day should also be spaced. Such as 3 to 4 times a day, do not finish it all in the morning or afternoon, it is best to distribute the time evenly in the eyelids, evenly separated into the eyelids for the best results.

   5. Pay attention to hygiene after makeup. When applying makeup, the mouth of the bottle must not touch the eyelids and eyelashes, so as not to contaminate the medicine with the chemical components of the cosmetics and cause inflammation after dripping into the eyes.

   Eye drive protection

   The first is to wash the eyes. Fumigation baths such as hot water, hot towels, or steam are often used to promote blood circulation in the eyes 1 to 2 times a day for about 5 minutes each time. It can also be combined with washing your face and drinking hot water, or you can fry the Chinese herbal medicines such as chrysanthemums and bamboo leaves separately, and smoke the eyes while the water is hot.

   The second is to raise an eye. Usually pay attention to the choice and matching of diet, eat more foods rich in vitamins, minerals and trace elements that are beneficial to the eyes, nourish the eyes, and avoid the lack of certain vitamins, minerals and trace elements, which affects eye health and causes vision loss. .

   The third is moving. Properly operate the eyeballs, exercise the vitality of the eyeballs, to achieve the purpose of relaxing tendons and improving vision functions, and make the eyeballs more flexible and sharp.

   The fourth is Momu. Frequently massage your eyes with your hands. Repeat this several times to improve the blood circulation of the eyes, not only maintain the youthful vitality of the eyes, but also prevent vision loss. Especially middle-aged drivers should do the same.

   Fifth is the pole. When you stop for a break, you should use your short moments to erect your body, relax your eyes, look straight into the distance, and then slowly retract your sight. When you are 35 cm away from your eyes, shift your sight from near to far. On the target. Repeat this several times before deep breathing exercises to relieve eye fatigue.

   Eyes maternal attention

   When a woman is confinement, her body is very weak, and eye care is very important. Because the five internal organs are damaged, the essence is insufficient, and the eyes lose nutrients, which not only affects the appearance of the eyes, but also affects the physiological functions of the eyes. So, how should we care for the eyes?

   Keep your eyes closed frequently: During confinement, the mother needs a better rest. When she takes care of the baby during the day, keep her eyes closed. This way, vision does not feel tired.

   Don't look at things for a long time: reading things for a long time, such as reading books, TV, and DVDs, will damage your eyes. Generally, you should take a break for a while or look away to reduce the fatigue of the eyes. Blood gas flow.

   Reasonable nutritional supplements: Foods rich in vitamin A should be eaten, because vitamin A can maintain the cornea normal, does not dry the cornea, degenerate, and enhance the ability to see things in the absence of light. If vitamin A is lacking, corneal dryness, photophobia, and tearing may occur. Therefore, you can eat more carrots, lean meat, lentils, green leafy vegetables and so on. In addition, eat less food that is not good for the eyes, such as spicy food, onions, garlic, leek, pepper, pepper and so on.

   Parturients should pay special attention to eye hygiene : Keep the distance between the eyes and the book at about 30 cm when reading a book. Do not read or write in dim light and direct sunlight. If you are not sure whether the brightness of the light is appropriate, you can use an eye protection pen test. In addition, some eye diseases, such as trachoma, blepharitis, corneal ulcers, etc., are mostly caused by inattention to personal hygiene. Therefore, do not rub your eyes with dirty hands and do not use toiletries with your family.

   Eye related misconceptions

   It's worth reading ABC News Network's answers to several common perceptions about eyes.

   1. Is it easy to damage your eyesight by squinting? will not. Ophthalmologist Dr. Jay Pipos said that squinting to see things is mainly to make the pupils smaller, less light enters the eyes, and enhances the focus, so that things look more clear. This action does not damage vision.

   2. Are eye problems inherited? Not necessarily. Dr. Pipos said that many eye problems are related to genes, but sometimes related genes are not necessarily passed on to the next generation. For example, cataracts are related to age, not genes. Dr. Kenneth Chang, Massachusetts said that it is important to note that some eye diseases are hereditary, such as glaucoma, and people with a family history of this disease are best checked regularly.

   3. Does eating carrots improve vision? Not in most cases. Diet is important for vision, but that doesn't mean eating carrots all day will give you hawkish vision. Vitamin A deficiency can cause vision loss, but excessive intake will not improve vision. However, some foods are good for vision, such as spinach and broccoli with lutein.