Is myopic when young, do not need to wear old mirror when old?
When you are old, is reading the newspaper can't see the small font, unconsciously head back or take newspapers to further to see the word, and the required reading distance increases with age? HuiQiao south hospital medical center director wu said, reading, old is called on medicine, is a natural physical phenomenon, with the growth of the age, the lens gradually hardening, elasticity is abate, the function of the ciliary muscle gradually reduce, causing the regulating function of the eye gradually decline, appear near thing not clear, is that people must arise after the age of visual problems.
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In daily life, people find that people who are nearsighted are middle-aged or old, without wearing old glasses and can see small objects closely, thus producing "people with myopia will not get old flowers". Mr Wu said that was wrong.
She explained that as the age increases, the ability of the eye to adjust decreases, and the person with myopia is no exception, but the form of expression is different. Myope eye already exist a certain number of diopter, don't wear myopia glasses a bit similar to the normal wear presbyopic glasses, so I can not wear presbyopic glasses can see tiny objects. But if you wear glasses, you can't see anything close to them, and the reason for this is that people with myopia will also get old flowers.
Under normal circumstances, the people of the same ages, aging degree may gap is not large, but everyone's adjustment ability, refractive state are not the same as before, so their aging degree is not necessarily the same. Wu jing, for example, when young people have far sighted people, the old flowers will appear earlier, the degree will also be more normal people, but myopic people, the number of old flowers is smaller than the normal people.
Therefore, it is not advisable to share the same old mirror. If the degree is not appropriate, it will be easy to see fatigue symptoms and affect reading and work.
Rectify old flower, find the method that suits oneself
With the advancement of science and technology, the treatment methods of presbyopia are becoming more and more diverse, including non-surgical correction and surgical correction methods (including corneal surgery, sclera surgery and lens surgery). According to wu, the non-surgical correction includes the frame glasses and the contact lens of the cornea, which is still the most common and simple corrective method.
"Each treatment has its own advantages and disadvantages, and you need to choose your own treatment according to specific circumstances." Wu warned, "the old can't see is not necessarily a presbyopia, it is possible that other eye diseases, if appear vision loss, suggest to the formal medical institutions, so as not to delay the disease."
Do you know the type of lens?
There are three basic types of mirror, double photoscope and progressive multi-focus mirror.
Single lens: single focus lens, for the current lens, the framework of the most popular in the older population advantage is cheap, low pair of match, faults only can be used for myopia, use less convenient.
Double light that has two different refractive power area (focus) convex lens, solved the problem of the far and near visual acuity, but there is like jumping and displacement of the optical defects, and there is "line", affect beautiful, easy to age.