In general, in the development of the eye, almost everyone's refractive state is generally different, and it is rare to see the same. However, if the diopter of both eyes differs by more than 250 degrees, it is often called anisometropia in the clinic. If not corrected in time, it can lead to "poor eye" vision loss faster, monocular amblyopia, exotropia, etc. If there is anisometropia in both eyes, it will have a great impact on the development of the eye, mainly in the following aspects:
1, the eyes are prone to fatigue
The anisometropia causes a large difference in the degree of the eyes, which is likely to cause visual fatigue, dry eyes, tears, headache, nausea, dizziness, etc., and there may be deviations in judging the distance and angle. When walking or driving, it is easy to harm itself. Safety.
2, "poor eye" vision declines faster
There is a principle in the use of the eyes - "use and retreat", that is to say, good eyes are often used, and bad eyes are gradually abandoned, so that eyes with poor eyesight will increase in degree of myopia. Fast, rapid decline in vision.
3, can lead to monocular amblyopia
When the child's eyes have anisometropia, the eyes with small diopter will see something clear, while the eyes with large diopter will not see clearly, and the brain can't merge two images with different definitions into one. At this time, the brain will command the eye with a small diopter to work, and the eye with a large diopter will work. Over time, the eye with a large diopter will develop into amblyopia.
4, can lead to monocular strabismus
As mentioned above, when there is anisometropia in the child's eyes, the visual development of the eye with poor vision will be inhibited. If there is no effective treatment, the eye with poor vision for a long time may develop into exotropia. .
How to correct anisometropia?
For anisometropia, the most common method of correction is wearing frame glasses and contact lenses.
● Wearing glasses is very effective for teenagers. Therefore, we generally perform full orthodontic or close to full correction (ie corrected visual acuity of 1.0) in children with anisometropia, supplemented by binocular visual function training and occlusion treatment. In particular, children under the age of 12 should correct all ametropia as soon as possible, consolidate their binocular vision and prevent the emergence and development of strabismus and amblyopia.
● For adults, as well as people with alternating vision and visual fatigue, all corrections are needed.
● If you are an elderly person, no visual fatigue may be corrected.
How to prevent anisometropia?
In daily life, do not look at the head when looking at the near object. The object to be viewed should be placed in front of both eyes and both eyes at the same time. Habitual side sleeping and incorrect pen posture may lead to different degrees of anisometropia. It needs to be corrected in time. In addition, vitamin A and lutein can be supplemented appropriately to help relieve eye fatigue and protect the eyes.