If you want to wear sunglasses or color-changing glasses for myopia glasses, add the degree. When wearing such glasses, the degree should be exactly the same as that of the lenses without sunglasses and without color-changing glasses. Wearing such glasses is mainly to avoid direct light entering the eyes, causing excessive adjustment of the eyes, causing visual fatigue or causing symptoms such as soreness, pain, foreign body sensation, and photophobia in the eyes.
If you wear myopia sunglasses, it is generally required to be below 500 degrees. If you have high myopia, it is recommended not to wear myopia sunglasses. Because it may lead to unclear vision, it is necessary to go through the examination of refractive errors in both eyes, check an approximate degree, and then perform a visual function examination of both eyes. Binocular vision function test, including diplopia method and binocular parallelism, and then measuring the interpupillary distance of both eyes, giving a specific interpupillary distance, wearing myopia sunglasses, the operation is relatively more complicated than ordinary glasses, in the process of wearing glasses, relatively more troublesome.