Lens Indexes and thickness
Even the most beautiful frame will not be comfortable when you choose the wrong lens thickness. Our guide will help you understand which index you need in order to enjoy your glasses.
How to choose the right lens thickness?
Basically, the higher your prescription values, the thicker and heavier your lenses will be. Thanks to the lens index (or index, for short), the thickness of the lenses can be greatly reduced, which can improve the aesthetic aspect.
Standard 1.5 lenses
The standard lenses with normal glass thickness are ideal for small corrections of ± 2 degrees. At higher values they are unsuitable.
Thin 1.6 lenses
Suitable for values of ± 2 to ± 4. The lenses are much thinner and lighter than the standard lenses
Very thin 1.67 lenses
Extra thin glasses suitable for high corrections from ± 4 degrees to ± 6
Extra thin 1.74 lenses
Super thin glasses that are suitable for corrections above ± 6
Please note that the maximum values are ± 10 and ± 4 for the cylinder