Hard Resin lenses have the advantages of lightness, impact resistance, and resistance to breakage, as well as certain UV resistance, which makes them widely used in daily life. This type of lens is particularly suitable for people with low myopia because it is relatively light and not easily broken.

* Thickness: Under the same prescriptions, 1.56 index lenses are thinner than 1.499 lenses.
* Weight: Due to the thickness, it's obvious that 1.56 lenses are lighter than 1.499 lenses in the same diopters.
* Visual Effect: As high index lenses, like 1.59, 1.61, 1.67 and 1.74, 1.56 index lenses have higher ABBE value, that means from the lenses, the wearers can enjoy the more comfortable visual experience.