Warm reminder: High myopia has a higher degree of myopia and thicker lenses. Once the glasses are fitted for a long time, it will easily cause pain in the bridge of the nose and uncomfortable eyes.
Here are some suggestions for you: When choosing glasses for high myopia, you should pay attention to the following points:
1. When choosing glasses:
From the perspective of the practicality of the frame, you need to choose a healthy, safe, comfortable, reliable, stable, and harmless material to the skin, light in weight, strong and not deformed.
2. When selecting a frame:
It is not recommended to wear half-rim frames and rimless frames. The rimless frame not only makes the edge thickness of the lens easily "exposed" and affects the aesthetics; and the frame is easily deformed, which leads to changes in the center distance of the glasses and the axial direction of the lens astigmatism, which affects the correction effect. In addition, the half-rim frame is also easy to expose the thickness of the edge, which is very unsightly.
3. The choice of frame material:
Available in sheet metal and titanium frame. The plate frame can cover the thick lens, which is more beautiful.
Titanium frames are much lighter than alloy spectacle frames. At the same time, they are harmless to the skin and can also reduce the pressure on the bridge of the nose. Avoid using alloy frames, which are not only heavier, but also prone to the risk of lens rupture and eye injury.
4. When choosing the shape of the frame:
Try to select frames with relatively small transverse diameters, so that the thick bottom of the lens is relatively small after the lens is installed. To
Myopia lenses are concave lenses with a thin center and a thick periphery. The farther away from the center, the thicker the lens. For horizontal oval frames, the smaller the cross diameter of the frame, the thinner the edge of the lens after trimming, which makes it look lighter while beautifying the appearance.
5. The geometric center distance of the frame:
Close to the pupillary distance of the glasses, the thickness of myopic lenses is mainly expressed in the horizontal direction of the frame glasses. Because the geometric center distance of most frames is larger than the pupillary distance of human eyes, the temporal edge of the lens is obviously thicker than the nasal edge in many cases.
The temporal edge of the lens is precisely the place that is easily observed by outsiders. Therefore, choose a frame with a geometric center distance close to the pupil distance of the lens to make the nose and temporal edges of the lens close, which can effectively reduce the thickness of the temporal edge of the lens and improve the appearance.
6. Suggestions for the selection of lenses:
The higher the power, the heavier the lens and the greater the pressure on the bridge of the nose. Lighter resin lenses should be used. At the same time, it is recommended to choose aspheric lenses, the higher the refractive index the thinner the lens, but the price is more expensive.
Aspheric lenses with the same refractive index are thinner than spherical lenses, lighter in weight, optical distortion is reduced, edge aberrations are reduced to a lower degree, and the vision is clearer and natural. However, since the price of aspherics is higher than that of sphericals, and the higher the refractive index, the more expensive the price. You can choose high-refractive resin aspheric lenses according to your economic affordability; the lenses are thinner, lighter, and not easy to wear. Shattered.
Everyone has a different degree of high myopia. When choosing glasses, you should choose glasses based on the above suggestions. I believe that you can match a pair of correctly corrected, healthy and comfortable glasses for myopia!
Aspheric lenses with the same refractive index are thinner than spherical lenses, lighter in weight, optical distortion is reduced, edge aberrations are reduced to a lower degree, and the vision is clearer and natural. However, since the price of aspherics is higher than that of sphericals, and the higher the refractive index, the more expensive the price. You can choose high-refractive resin aspheric lenses according to your economic affordability; the lenses are thinner, lighter, and not easy to wear. Shattered.
Everyone has a different degree of high myopia. When choosing glasses, you should choose glasses based on the above suggestions. I believe that you can match a pair of correctly corrected, healthy and comfortable glasses for myopia!
