How to choose sunglasses for the elderly with sun protection in summer？
Under the scorching sun in summer, many young people will wear a pair of sunglasses, which not only protects the sun but also shows their fashion taste. In the eyes of many elderly people, wearing sunglasses in summer is a matter of catching up with fashionable young people. But in fact, sun protection in summer is equally important for the elderly, which can effectively prevent the occurrence of certain eye lesions.
Excessive ultraviolet rays in summer can cause corneal edema, tearing, pain and other symptoms, which can affect vision. According to a foreign authoritative journal of ophthalmology, long-term exposure to the sun will cause "age-related macular degeneration" early, which is one of the main factors that cause vision loss in middle-aged and elderly people. And for patients with cataract, keratitis, conjunctivitis, retinal detachment and other eye diseases, wearing sunglasses can promote the recovery of the disease and bring enough cooling and protection in hot summer.
There are also some precautions when wearing sunglasses. When crossing the road or going to the shade, take off your sunglasses in time, because from the bright place to the dark place, or to the place where people and vehicles are concentrated, the eyes have an adaptation process, which can easily lead to blurred vision, so you should take off the sunglasses in time. safer. It is not advisable to wear sunglasses for too long. It is recommended to take off and rest every one or two hours, and gently massage the eye area. Otherwise, symptoms such as headache, irritability, blurred vision, and even decreased vision may occur. The crystals of the elderly are aging and expanding, so they cannot wear sunglasses for a long time, otherwise it will cause accumulation at the root of the iris, which will block the outflow of aqueous humor and increase the intraocular pressure. In addition, the elderly with glaucoma, retinitis, color blindness, and night blindness are not suitable for wearing sunglasses.
