Progressive lenses have clear benefits compared to bifocal and trifocal lenses. Progressive lenses have a power for the near, intermediate and distance zones – and all of this in a lens with a seamless transition and no dividing line. The power is smooth from top to bottom and moves from distance to near vision.

Canon, Nikon, Sony, Sigma, and Zeiss are all renowned for their quality lenses.

Plastic glasses – also known as organic glass – are used today for all types of spectacles and are also best for sports and children's glasses. They are very light and therefore comfortable to wear.