Reading Glasses Need To Be Replaced Regularly

Presbyopia is an inevitable visual problem after people enter the middle and old age. Young people's lens is soft and elastic, and can be thickened and thinned at any time. It has excellent adjustment function to make people see near objects. With the increase of age, the lens gradually hardens, the elasticity weakens, the ciliary muscle function also gradually reduces, the human eye adjustment function also drops. Presbyopia is a disease in which the accommodation of the lens is weakened due to aging, which makes people unable to see the objects clearly nearby. Ophthalmologists remind that presbyopia is a physiological phenomenon, regardless of the refractive status, everyone will have presbyopia. 

People can develop presbyopia from the age of 40. Presbyopia patients will first feel that they can't see small words clearly, and often can't help looking at things far away, so as to reduce the burden of lens adjustment and eliminate blurred vision and eye fatigue. When not wearing bifocal reading glasses, even if you can barely see the near target, it is mostly caused by forced lens adjustment. If you don't wear adjustable reading glasses for a long time, it will lead to eye fatigue, headache, eye pain, can't see ear objects and other symptoms.

Presbyopia is a kind of physiological phenomenon and a necessary stage of life. However, the original refractive state will affect the time when presbyopia appears. For example, hyperopia patients with presbyopia appear earlier, myopia patients appear presbyopia later, or even do not appear. In addition, presbyopia is also related to living habits, occupation types and other factors. The decline of ciliary muscle regulation function caused by body weakness can also promote presbyopia. After suffering from presbyopia, be sure to wear magnetic reading glasses. Tinted reading glasses can not only improve vision, but also protect the eyes.

Presbyopia is not ametropia. But presbyopia occurs when light is projected behind the retina. If you want to correct presbyopia, you have to use the correct degree of convex lens to correct the light projection, that is, wearing designer reading glasses. There are three kinds of reading glasses: single focus reading glasses, double focus reading glasses or progressive multi focus reading glasses.

Some middle aged people and elderly people do not want to wear round reading glasses after suffering from presbyopia. They think presbyopia is not a serious disease. But doctors recommend wearing reading glasses if you have presbyopia. Usually, presbyopia degree will increase with age, so a pair of target reading glasses can not be used for a long time. Every once in a while, reading glasses need to be replaced. When replacing the reading glasses, be sure to buy them in a professional eye hospital. If wearing inappropriate reading glasses, not only can not improve the patient's vision, but also can cause damage to the eyes of patients.

Eyes are the window of the mind. If the eyes have problems, people's life will be seriously affected. Therefore, once the eye problems, it is necessary to promptly go to the hospital for examination and take corresponding treatment.