Presbyopia is a condition that gradually develops in people who are older and have difficulty reading or working at close range. It is a phenomenon of the aging body. Presbyopia is also known as presbyopia in medical terms. Modern medicine proves that presbyopia can be prevented, and often some eye care can prevent presbyopia! Presbyopia maintenance methods 1, often blink method: usually a free time to use a blink to open and close to invigorate and maintain the eye muscle. At the same time, use both hands to lightly rub the eyelids to enhance the moisturizing of the eyeballs; close your eyes and try your best to lift your shoulders, close your eyes tightly for a while and then relax. This is repeatedly done. 2, cold water eye wash method: early in the morning after waking up, adhere to the cold water wash face, wash eyes. First soak both eyes in cold water for 1-2 minutes, then gently rub the face and eye muscles with both hands 20-40 times. 3, Chinese medicine bubble serving method: purchase Chinese medicine wolfberry, grass cassia, each time with 12 grams, with just boiling water bubble, drink frequently to serve as tea, can receive nourishing liver and kidney, clear the liver and brighten the effect. Note that during consumption should not eat chili and alcoholic foods. 4, hot water for the eyes method: every night before bed, with 40-50 ℃ of warm water to wash the face. Wash your face first soak the towel in hot water, take out do not wring too dry, immediately while hot compress on the forehead and both eyes, head up, both eyes temporarily lightly closed, about 1-2 minutes of hot compress, wait for the temperature to reduce and then take the water to wash your face. The above methods should be applied jointly and used in turn. Generally, as long as you adhere to about six months, you will receive obvious results. Presbyopia is a common eye disease in the middle-aged and elderly. Modern medicine proves that presbyopia can be prevented. The key to it is six tricks: 1, to focus on a small target gaze, do not look at things with a squinting afterglow. 2, blink often, blinking will not affect the eye muscle, but can make the eye muscle often get exercise, slow down the aging. 3, often turn the eyes, because the eyes often turn back and forth in the direction of up, down, left, right, etc., can exercise the eye muscle. 4, from the dark to the sun to close the eyes, do not let the sunlight directly to the eyes. Watching TV and movies should not be too long to maintain good eyesight. 5, pay attention to exercise. To do more full-body exercise exercise, increase blood circulation throughout the body are beneficial to the eye muscles. 6, sure to master the reading method, reading to sit comfortably, the whole body muscles relaxed, reading from the eyes about 30 cm or more, do not lean too far forward. Otherwise, it will affect the strain on the back muscles, do not read in bed, do not force reading when overworked.