As the elderly age, the probability of developing various eye diseases increases. Most of these eye diseases bring about changes in vision, such as distortion and discoloration of vision, dark spots in front of the eyes, loss of vision, and in severe cases, can cause blindness, thus posing a greater threat to the quality of life. If the relevant eye disease can be recognized as early as possible and treated accordingly, visual damage caused by delay and inattention can be avoided. Presbyopia Causes: Presbyopia is a condition in which the lens hardens and becomes less flexible in old age, resulting in a decrease in the ability to regulate light, causing light to fall behind the retina instead of gathering accurately on the retina, resulting in blurring of objects and text at close range. In general, people will start to have different degrees of blurred vision around the age of 40. Response: Pay attention to exercise and reasonable diet. Do more whole-body exercises to increase blood circulation throughout the body. Eat more foods rich in vitamins and high quality protein, such as lean meat, fish and milk. Regular consumption of black beans and black sesame can slow down vision loss. For the presbyopia that has been produced, it is necessary to carry out reasonable optometry and prescription, in order to be able to see the near objects without discomfort, and every 5 years to re-optometry and prescription. Dry eye causes: Dry eye is one of the common eye diseases in the elderly, and there are many factors that can trigger dry eye, including: reduced tear secretion after middle and old age; diseases of the eye itself, such as corneal degeneration, blepharitis, trachoma, etc.; various immune diseases and connective tissue diseases, such as rheumatoid arthritis, lupus erythematosus, dry syndrome, arthritis syndrome, etc.; caused by certain drugs, such as sleeping pills, sedatives, cough medicine, gastric syndrome, etc. Sedatives, cough medicine, stomach medicine, etc.; it can also be caused by vitamin A deficiency. Dry eye syndrome mainly manifests as dry eyes, itchy eyes, foreign body sensation, burning sensation, easy fatigue and other symptoms. Response: In daily life, use a humidifier to properly increase the humidity of the environment. Elderly people should blow less wind and air conditioning, reduce the concentration of work, and develop the habit of blinking more often. If symptoms do not slow down, promptly seek medical attention and standardized treatment. Such as treatment of the original disease, supplementation of artificial tears, tear point closure, etc. Causes of tearing: There are functional and organic tears. Functional lacrimation is mainly due to relaxation of the eyelids and degenerative changes of the eye muscles in the elderly. Organic tearing is mainly due to trachoma, chronic conjunctivitis, tear duct inflammation and other causes of narrowing and obstruction of the tear duct, so that the tear drainage is obstructed, in the indoor will also appear tearing symptoms, encounter cold wind will be more serious, also known as “overflow tears”. Response: For functional tearing in the wind, can be combined with acupuncture, hot compresses or Chinese medicine treatment, but also appropriate antibiotic eye drops dot eyes. For tearing caused by tear duct obstruction, laser treatment can be used. For some eye diseases (such as chronic dacryocystitis), surgical treatment can be considered. Cataract Causes: Cataract is a common eye disease that causes vision loss due to clouding of the lens, and senile cataract is an aging phenomenon. As we age, the lens gradually hardens and becomes cloudy due to abnormal metabolism, resulting in vision loss. Ultraviolet radiation, tobacco and alcohol, and systemic diseases are also associated with the formation of cataracts. Response: There are no drugs that are effective for this disease. Surgery is the most effective way to cure cataracts. Glaucoma: Glaucoma is a group of eye diseases characterized by optic nerve damage and visual field defects. The acute phase of glaucoma is characterized by eye pain, photophobia, lacrimation, severe headache, severe vision loss, and may be accompanied by nausea and vomiting, which can eventually lead to blindness if left untreated. If you experience severe eye pain and rapid vision loss, be sure to seek medical attention in a timely manner. Response: Treatment of this disease is aimed at reducing intraocular pressure, protecting the optic nerve and preserving visual function. Depending on the patient’s condition, surgical treatment is given after the IOP has been reduced to normal. Macular degeneration Causes: Age-related macular degeneration is a common blinding eye disease in the elderly in developed areas. The incidence is gradually increasing with the aging of society. It is a type of disease caused by long-term chronic photodamage, genetic, metabolic, nutritional and other factors that change the structure and function of the macula. Response: In daily life, if the elderly appear visual distortion, visual field with dark spots or vision loss, to consider the possibility of fundus pathology, be sure to go to a regular hospital for a clear diagnosis. Flying mosquitoes causes: The elderly often find some black shadow in front of the eyes, more or less, different forms, with the eye rotation and flying. The closer you look, the clearer; the more in the bright background, the clearer. But eye examination and no organic lesions, this phenomenon is “mosquito flying”. Response: No special treatment is needed, as long as regular (six months to a year) to the hospital for examination. But if the “flying mosquitoes” in front of the eyes suddenly increased or “flash” and vision loss, should immediately go to the hospital to check whether the occurrence of fundus hemorrhage or retinal detachment.