1. The width of the nose bridge of the glasses is moderate.
Consumers can check the spectacle frame by themselves by the following methods: keep the head vertical and look forward, and the spectacle frame can maintain a satisfactory position without any clamping of the temples.
If the bridge of the nose is too narrow, not only the lens will be too high in front of the eyes, but also the part where the bridge of the nose is in contact with the nose will be uncomfortable, and even cause the skin tissue of the nose to dent temporarily; if the bridge of the nose is too wide, the lens will fall too low and the lens It is impossible for the legs to keep the frame in the normal position for a long time.
2.. Negative refractive power (commonly known as myopia power), the deeper the lens circle is better.
3. Generally speaking, round frames are not suitable for those with large astigmatism.
4. Taking into account the effects of visual aberrations and prisms, it is best for ordinary consumers not to choose frames with too large arc.
5. For children, you can choose a transparent frame without nose pads. If the nose pads are too high, the nose bridge will be more collapsed.