Types of Sunglass Lenses

Sunglass lenses can be put into two main categories- glass and plastic.

GLASS - are heavier than plastic lenses but are more scratch resistant. Glass lenses are good for everyday wear. Brands include Serengetti, Brenner and Ray ban

PLASTIC OR POLYCARBONATE - light and impact resistant. Plastic lenses are good for physical activities and are also suitable for everyday wear.

LENSES, TINTS & COATINGS

Polarized - control glare by absorbing light that scatters. Because they cut glare, polarized lenses are favoured by golfers, fishermen and outdoor enthusiasts. They are also recommended for driving.

Photo chromic - good for people who don't like switching between prescription glasses and sunglasses. These light-sensitive lenses darken in about 30 seconds when exposed to bright lights. Once indoors they lighten within 3 minutes. Although suitable for everyday wear, photo chromic lenses are not recommended for high glare sports, such as boating or skiing.

Anti-reflective coatings - reduces glare and reflections off your lenses. This increases the amount of light that reaches your eyes and provides brighter, crisper and clearer vision.

HANDY TINT GUIDE

The colour and darkness of your sunglasses lenses has little to do with the UV protection. Decide what you will be using your sunglasses for to get the maximum comfort and performance.

Grey - allows true colour perception and does not enhance contrast. A good tint for golf, running or cycling.

Green - allows true colour perception and produces a fair contrast in low light. It also reduces eye strain in bright light.

Brown - is better in hazy conditions and enhances contrast. A good tint for high-glare sports such as fishing, skiing or sailing.

Yellow - produces excellent depth perception and contrast in low light. Good for mountain biking and shooting.

RED - has excellent depth perception in low light. It also creates contrast against blue and green backgrounds. A good tint for skiers or sports people.