Sun Glare Variations And Causes

Posted under environment by Bruce Jopples

Sun glare is caused when the suns light affects the ability to clearly see. There are two different forms of glare: discomfort and disability. One is directly caused by sunlight and the other is often the result of diseases or genetics that cause sensitivity.

Discomfort glare is when the sun is uncomfortably bright. To compensate, the pupils of the eye normally decrease in size. Most individuals find that they must shade their eyes, squint, or else close them completely. If they continue to look into highly bright light, it can become painful.

Disability glare is a reduction in the ability to see. Diseases can cause it, and it can take place in environments with low levels of sun light. The development of cataracts cause the lens of the eye to become cloudy. This causes light entering the eye to scatter instead of travel directly through. This makes objects unclear and blurry, and high light situations even more uncomfortable. This is due to the bright light causing even more light to scatter and cause vision to blur further.

Ocular albinism also causes problems with light. This is when people are born without pigment in their eyes. In addition to this conjunctivitis and problems with the cornea also cause difficulties. Meningitis has been known to cause a sensitivity to light that is painful.

If an individual begins to experience sensitivity to light, an optometrist should be consulted. With a thorough examination, the cause for this condition can be determined. Once an eye disease is diagnosed it can then be treated.

Some medications prescribed by doctors for other medical conditions can sometimes have the side effect of sun sensitivity. Antibiotics and certain heart medications are some examples. In these cases, there is usually an alternative medication available without this unpleasant side effect.

However, there are other methods to deal with the sun. Among the most cost effective options are wide brimmed hats. Sunglasses with tinted shades are another option. The best pairs contain UV filters that screen UVA and UVB light. Pairs are also available that rap around the head and limit light entering from the sides or from above. Further, these pairs can be placed on top of normal prescription glasses.

Glare is sometimes the direct result of the sun or sometimes the result of other factors. Medications, lack of pigmentation, and disease can cause a sensitivity. In these cases, steps can be taken to reduce the amount of light that enters the eyes. Putting on a wide brimmed hat or wearing UV filtering sunglasses solve the problems caused by brightly lit situations.

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