From the point of view of medical prescription, the astigmatism axis of 1 is feasible, but there is still a processing step from prescription to finished glasses, and the level of 5 may be more feasible for processing. In the process of finished product inspection, it is easier to control the detection range with national standards. In fact, as a wearer, the change of astigmatism axis within 5 is almost imperceptible. If you are particularly sensitive to this project, you should explain it to the optometrist in advance and respect your requirements.

In addition, if you have high requirements for glasses, you should also put forward higher requirements for plastic surgery when taking glasses, because plastic surgery may affect the visual effect more than the astigmatism axis difference of 1-2.

Plastic requirements: 1. Is the optical center of the lens consistent with the pupil center?

2. The distance between the cornea and the inflection point of the lens

3. The included angle between two lenses

4. Angle between lens and temple

5. The cooperation between nose pad and nose

The above plastic contents have a great influence on the eyesight of glasses.