Lenses are related to the health of our eyes, so when choosing, we value their function more. Overall, its functions are mainly reflected in aspects such as light transmittance, absorption of harmful rays, chemical stability, lightness, wear resistance, and safety.

From the perspective of the cheapest eyeglasses lens design, there are no more than visual effects and lens functions. The visual effect is mainly changed through the following methods.

Materials, different materials have different optical properties, and different materials can create different visual effects.

Generally speaking, the design of spherical and aspheric lenses is more natural and comfortable when compared to aspheric lenses with the same material and degree.

Refractive index, high refractive index lenses mainly improve thickness, emphasize aesthetics and lightness, and optimize visual comfort, and at the same time, different degrees are suitable for different refractive indices of lenses.

Color, now widely used in the manufacturing of lenses, the color cheap eyeglasses near me have a fashion sense that cannot be compared to other lenses and is deeply loved by young people who showcase their individuality.

The function of lenses is mainly achieved through film layers. Film layer refers to the physical and chemical method of coating a certain thickness of single-layer or multi-layer optical thin film on the surface of eyeglasses, enabling the lens to obtain some new and originally not possessed excellent performance.

Generally speaking, adding a film can reduce the reflected light on the surface of the lens, provide clear visibility, reduce the reflected light on the mirror, increase transmittance, solve the problem of wearing glasses under strong light, increase aesthetics, make the wearer's eyes less prone to fatigue, and effectively prevent UV, infrared, and X-ray damage to the human eye.