A pair of qualified glasses not only can help people work and learn better, but also is a prerequisite for ensuring visual health. glasses online have the characteristics of cheap prices, diverse styles, and simple processes, but we must not forget the original intention of matching glasses. As long as glasses meet eye health standards, we want them.

When the glasses online are finally returned to the customer's hands, it is necessary to confirm the wearing comfort and degree of reexamination, and adjust the nose rest, mirror legs, and so on according to the face-to-face diagnosis. Glasses don't seem to have much technical content. In fact, even a small amount of error can make them uncomfortable to wear and impair visual quality. However, differences in data may attach greater importance to fatigue and even worsen vision loss.

Pay attention to the problem of pupil height in large frame glasses. In particular, it is important to note that the pupil height of both eyes is not necessarily horizontal. Experienced opticians can find the exact pupil height position by clicking the pupil. The tolerance of the human eye in the vertical direction is relatively sensitive. If the optical center height of the prepared lens does not match the height of the pupil, there will be a prism effect, which can cause the impact of eye fatigue.