Summarize this article:

Of all five senses, eyesight is the sense that you depend upon the most. Despite this, few people insure their eyes or get eye exams, almost taking their sight for granted.  One of the greatest adversaries to your eyes is the sun. With dangerous UV rays, glare, and carcinomas, the sun damages the eyes considerably over time. Carcinomas of the eyelids, like squamous and basal cell, spread rapidly and are typically found in people who have a history of sun exposure. Melanomas are linked to intense, intermittent sun exposure and if not treated promptly can prove lethal. Transitions lenses adapt to the sun’s brightness and protect the eyes from potentially fatal damage by darkening the lenses of your glasses. Constant adjustment to changing light can cause eyestrain and fatigue. Your lenses have to filter all the sunlight that comes into contact with your eyes making them work hard and wears them down quickly.  Although eyestrain by itself does not have long-term consequences, it can severely aggravate your eyes making you tired and reducing your ability to concentrate. Transitions lenses protect your eyes allowing them to stay relaxed and comfortable throughout the day. Glare and squinting are related but glare is far more dangerous, especially if you are driving or walking along a road. Glare, caused by excessive sunlight, forces you to either squint or look away because it is blinding. Without proper protection, this distraction can cause a serious accident.  Good vision is important to safe driving. Driving without protection against glare — from the road, snow, or other cars — is a treacherous proposition. Make sure you use the sun visor, keep your windshield clean, rest your eyes from squinting, and look into Transitions Drivewear sunglasses, which cuts glare considerably. Drivewear lenses rapidly adapt to glare while you are driving your car making them the perfect answer for driving safely. Most windshields are treated with UV protection, so most normal Transitions lenses may be less effective behind the wheel (as they respond to UV light, which will already be filtered by the windshield). Drivewear, however, uses ambient light and will get darker depending on light conditions. The earlier you begin to protect your eyes against the sun the better. In other words, it is never too early to protect your vision. Children are even more susceptible to the harmful effect of UV radiation than adults. Children under the age of ten have a greater chance of getting photokeratitis, which is sunburn of the eye, and UV-related retina problems because their eyes are not as efficient at filtering UV rays as adults' eyes.  Without proper eye protection, your child could suffer red eyes due to sunburn, non-stop tearing, burning or itchy eyes, or severe eye pain and spasms. Transitions eyewear blocks 100% of UV radiation, providing safety for your children’s eyes.

Summary:
Don’t ignore your eyes. Avoid squinting. Prevent glare while driving. Protect your eyes early.