When you buy lenses from us, you have the opportunity to choose how thin your lenses should be. We are happy to make recommendations, but you can read more about lens thickness here.

The choice of glass thickness depends on several factors such as strength, desired weight and appearance, and the frame in which the glass will be mounted.

Glass thickness is described by an index number. The higher the index, the smaller the thickness. Thicker lenses are
Generally cheaper, but can only be used at lower powers. Higher index lenses are thinner, lighter, and can accommodate more types of vision needs.