It is a well-known fact that Ultraviolet light is harmful to your eyes. Less well-known, is that visible violet-blue-cyan light (short wavelengths), known as High Energy Visible (HEV) light, can also be harmful.

Sources of UV and HEV light are many and range from the Sun to artificial lighting and digital devices. Over-exposure may lead to serious eye complications.

Pentax Refine is a high-tech treatment designed to protect you from both UV and HEV light.