Few activities are more demanding on your visual acuity than aviation.

That’s why Pilots generally need comfortable, sharp vision in three visual zones:

• Distance vision for observing the runway, a...

Which rays do the sun emit and how much are we exposed to?

The sun emits different light components that consist of visible light, infrared light and ultraviolet radiation. Ultraviolet radiation is w...

First, what are Bifocals?

These lenses have two different prescriptions in the same lens. A small portion in the lower part of the lens contains the power required to correct your near vision which i...