The next dilemma in choosing a pair of sunglasses is choosing color of lens. They have green shades, blues, reds, browns, greens and even clear. Despite what people might think about darker colors being more protective against Ultra Violet Rays, as long as they indicate that they are UV protective, you're safe.

Children should also be protected from Ultra Violet Rays. They are out in sunlight more than adults seem to be, their eyes are more sensitive than and adults and most important, UV damage accumulates over time, so we need to start protecting out eyes as early in life as possible.

Polarizing lens coating is a very popular request. They are excellent at blocking out blue light. They come highly recommended by boaters, skiers, and people who spend allot of time driving. The glare is reduced as well, making all these activities easier on eyes.

Mirror coating is another type of coating to be applied to prescription eyeglasses. It is like looking through a two-way mirror, thus reducing a person's vision to an extent. They are available in many colors and they do not allow much heat to enter eyes due to fact that they are reflective.

Scratch resistant coating is almost always applied to front and back of lens. It helps to reduce accidental scratches and makes lens more durable.

The last coating is anti-reflective coating. It greatly reduces reflection as it allows more light to pass through lens.