In the actual work of Lianzi Optometry, we often encounter many people whose eyes have very different degrees. We call it " anisometropia ".
The first harm is to damage the single vision function of both eyes; the second is to cause monocular amblyopia and exotropia.
Correction methods mainly include two methods:
one, frame glasses :
1) If you have never worn glasses, strictly speaking, children must go to the hospital for the first time glasses dilation and optometry , adults It is also recommended that people wear glasses for the first time and undergo dilated optometry to rule out pseudomyopia. In principle, there is no need to wear glasses for pseudomyopia (in special cases, it may be recommended to wear them during class if you cannot see clearly, but not to wear them at ordinary times). It is possible to recover from pseudomyopia if you cooperate with the doctor's advice to intervene against pseudomyopia. If it is true myopia , you must wear glasses. And it must be worn for a long time, except when sleeping.
2) Suppose your prescription is -4.00 in one eye and flat in the other. If you give it -4.00 immediately, you will most likely not be able to bear it. We recommend step correction. For the first time, it is recommended to wear glasses with 2/3 of the actual prescription. Once you get used to it, immediately change to a higher degree, and slowly and step by step change to the actual degree. Lenses that have been worn for a long time should not be undercorrected. There is no way to get glasses with a lower prescription. The ultimate goal is to get the actual prescription smoothly. Only when the actual prescription is worn and the clarity of both eyes is close, can vision develop healthily. The specific operation method must take into account the patient's age, fitting situation, etc. Children have greater adaptability and plasticity, and can better accept glasses. They can be prescribed according to needs during the audition. For anisometropia below -6.00, full correction should be actively performed or as close to full correction as possible, and should not be affected. Bound by the principle of not exceeding -2.50.
3) Frame glasses are not friendly to people with anisometropia, because there is an eye-eye distance between the frame and the cornea vertex of the glasses, which will produce aberrations. The higher the degree of myopia, the smaller the objects you see. The power difference between the eyes is large, so the objects seen will be larger and smaller. This is what causes discomfort. If you start wearing glasses after you are an adult, it will be difficult to adapt. But we still have to work hard to adapt ourselves. Only glasses are the most economical and healthiest way to correct vision.
4) If people with anisometropia do not wear glasses for a long time, the eye with the higher prescription will be suppressed, resulting in low visual function. Simply put, no matter how many degrees of prescription are given, the eyesight cannot be corrected to good vision. It is strongly recommended that people with anisometropia must wear glasses!
2. Contact lenses:
1) Contact lenses are very friendly to people with anisometropia. Because contact lenses are attached to the cornea, there is no interocular distance, and there is no aberration problem. Therefore, the objects seen by both eyes are the same size, so they are more comfortable.
2) However, long-term wearing of contact lenses can cause corneal hypoxia, thus causing various eye problems. If you must wear contact lenses for a long time, it is recommended to choose contact lenses made of silicone hydrogel. The oxygen permeability of this kind of contact lenses is more than 5 times that of ordinary materials. For example, Bausch & Lomb Pure Vision monthly disposable products, Johnson & Johnson European Comfort biweekly disposable products, European Comfort daily disposable products, etc., the prices are also relatively high. Can support long-term wearing. But wear it as little as possible.
Lotus seed optometry suggestions:
1) People with anisometropia must correct their vision, otherwise the consequences will be serious!
2) Strive to adapt to frame glasses, mainly frame glasses, supplemented by contact lenses.
