Ten things you don't know about glasses！
1. Some people say that the degree can't be matched too deep, otherwise it will be worn deeper and deeper?
Answer: this statement is incorrect. The degree is not enough. The patient will squint when looking far away, causing ciliary muscle contraction (to be adjusted), leading to eye fatigue, which on the contrary makes the degree easier to deepen.
2. Then I won't be old? (nearsightedness now)
A: old flowers are a physiological phenomenon. Everyone can. This is because the function of ciliary muscle declines with age, which makes it difficult to see near (especially to read and write). Therefore, it is called Laohua, but the myopic or the person with good examples should be hesitant. If the myopia degree is shallow, it can be washed away with the old flowers, so when you look near, you can take off the reduced degree of the height number, and you can see the distance unchanged.
3. After glasses match, whether should wear often?
A: Generally speaking, if the degree is relatively shallow - 1.00-2.00, you can not often wear it when you look close to it. In this way, you don't need to increase the adjustment of your eyes. If you read more than - 3.00ds, you need to wear it no matter whether you look near or far. If you don't wear it, you can see the object blurred, and the adjustment will be deepened, leading to the deepening of fatigue.
4. Why do some people wear sunglasses with larger radian to appear giddy?
A: Yes, some people have this kind of situation, mainly because of the sensitivity of the eyes and the large radian of the lens. After assembly, there may be a certain prism effect, so there is dizziness.
5. Why are the new glasses uncomfortable at first?
Answer: there are many reasons. A. the degree may be different. B. the angle has changed. Old glasses have formed a bad habit of wearing for a long time due to deformation and damage. C. The old glasses have to adapt to the correct angle. C. The old glasses have blurred the lenses and blurred the objects due to wear. However, the new glasses suddenly feel much brighter due to clarity, which leads to visual impact, so they don't feel it Yes.
6. I have cataracts. Can I have glasses?
A: first of all, do you want to make sure that you are in the early stage or in the middle and late stage? If it is early, most of the results are good, but if it is in the middle and late stage, the effect is not obvious. It is recommended to wear glasses three months after operation.
7. Does dot have pseudomyopia? What is pseudomyopia?
A: it can't be completely said that the so-called pseudomyopia is due to the continuous contraction of ciliary muscle. Over regulation leads to spasm of regulation and increase of the refractive power of the eyes, resulting in myopia of both eyes and decrease of vision. Eyesight fatigue phenomenon, as long as relax adjustment, see more distance, more exercise, you can return to normal.
8. When children read and write, is it better to use incandescent lamp or fluorescent lamp?
Answer: in principle, incandescent lamp is good. For a small table lamp with wattage between 25W and 40W, the light comes from the left side. It's better not to direct your eyes. The light of fluorescent lamp is not stable.
9. Are presbyopic glasses worn deeper and deeper?
A: it can't be said that without wearing the presbyopic glasses, they will get deeper and deeper. This is a physiological phenomenon and a manifestation of the decline of our regulatory function. Everyone is the same.
10. How can I feel something flying around like a mosquito sometimes?
Answer: this kind of phenomenon may be floater mosquito disease. If it happens only occasionally, it will not increase. It may be physiological. Often, it may be pathological. It is vitreous turbidity caused by intraocular disease, hemorrhage or degeneration. You need to go to the hospital.
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