The elderly should wear low-prescription reading glasses when watching TV The elderly generally have reading glasses, wh

The elderly should wear low-prescription reading glasses when watching TV The elderly generally have reading glasses, which they wear when reading books and newspapers, but they do not wear them when watching TV. In fact, this not only does not protect the eyes, but is more likely to damage vision. As people age, the physiological functions of the ciliary muscles and lens will decline, and the regulatory power will be weakened, so that the near point of vision (that is, the close distance that can see objects clearly) will be significantly farther away, so that the vision of near objects will be blurred, which is commonly known as "presbyopia".

The proximity point of a 60-year-old is 1 meter, the proximity of a 65-year-old is 2 meters, and the proximity of a 70-year-old is 4 meters. The human eye can only see objects comfortably and permanently when using less than 1/2 of the adjustment force, and if all the adjustment force is used to see the external object clearly, it is easy to cause visual fatigue, blurred vision, eye swelling, headache, tearing and other symptoms.

Generally speaking, the distance to watch TV is about 2 meters, and if you add that the TV screen is small, the elderly over 65 years old will not be able to see the TV screen clearly even with all the adjustment force. Therefore, the elderly not only need to wear reading glasses when reading books and newspapers, but also wear a pair of reading glasses with a lower prescription when watching TV.