Polarized sunglasses are high in demand because they can reduce the glare from the sunlight. They can prevent sunlight from reflecting on your sunglasses horizontally. Polarized light can reflect from flat surfaces such as highways and water. Polarized sunglasses are not suitable for skiers because they need to see the reflection of the icy patches to prevent colliding with obstacles. Glasses lenses can provide optimum optical quality. Despite that, they are not suitable for people that want to perform rugged outdoor activities. Polarized glasses lenses can shatter when they are dropped on the ground. They are fragile and cannot endure any impact. Some sports glasses have lenses changing mechanisms. The lens-changing mechanism allows you to change the lens tints according to the type of lighting condition. When you change the lens's tint, your visual acuity will be improved. Sports sunglasses have a wraparound to make the wearers look sporty. They are suitable for athletes or people that often perform sports outdoors. Today, you can find sports sunglasses in many types of tints including brown, green, orange, and yellow. Each lens tint is designed for a specific circumstance. If you are a skier, you should wear sunglass that has high contrast. Prescription sunglasses with high contrast tints usually have amber lenses. If you want to protect your eyes from the sunlight, you should wear grey sunglasses. When you perform sports, you will move around a lot. Since you move around a lot while performing sports, it is important to buy sports sunglasses that are made from polycarbonate. Polycarbonate sunglasses are lightweight and strong so they can resist heavy impacts. If you need visual acuity in low light conditions, you should buy sunglass made with a wavefront-guided lens. It can offer visual acuity in the daytime. When buying ski goggle, make sure it is equipped with ultraviolet coating and anti-fog coating. It should provide 100% protection against ultraviolet rays. Many frames available at the stores are designed for golfers, cyclists, and hikers. Some people are brand conscious and want frames that are made by a reputable fashion house. Many celebrities have signed endorsement deals with large sunglasses manufacturers to increase brand awareness among consumers. It is really not worth spending so much buying designer glasses. If you want to buy eyeglasses or sunglasses online, make sure you set down a budget and determine the kinds of features you want your sunglasses to have. You can save money up to 80% if you buy polarized sunglasses at Cheapglasses123.com.