About eyeglasses, some questions you don't know.
Q1: Some people say that the power cannot be matched too high, otherwise the power of the glasses will be higher and higher?
A1: This statement is incorrect. If the degree is not enough, the nearsighted people will squint their eyes when looking at the distance, causing the ciliary muscle to contract, causing the eyes to become fatigued. This will make the degree more likely to increase.
Q2: If I am nearsighted, will I still be presbyopic in the future?
A2: Presbyopia is a physiological phenomenon, everyone knows it. This is because the function of the ciliary muscle decreases with age, which makes it difficult to see near things, such as reading and writing, so it is called presbyopia, but people with nearsightedness or good eyesight tend to have presbyopia later. If the degree of myopia is relatively shallow, it can be washed away with presbyopia.
Q3: After the glasses are matched, should they be worn often?
A3: Generally, if the degree is shallower than 100 to 200 degrees, you don't need to wear it often when you can see things clearly. This will not increase the adjustment of the eyes, and the reading myopia will not deepen. However, if it exceeds 300 degrees or above, you need to wear it often whether you look near or far away. If you don’t wear it, you will be confused when looking at objects, and the adjustment will deepen, resulting in fatigue and increasing depth.
Q4: Why do some people experience dizziness when wearing sunglasses with a relatively large arc?
A4: Only some people will have this situation, mainly because of sensitive eyes and large curvature of the lens. After assembly, a certain prism effect may be produced, so dizziness may occur.
