Ultraviolet Awareness Month is sponsored by Prevent Blindness America to increase awareness of how UV rays can damage your eyes, increase your risk of cataracts and cancers of the eye especially in high-risk patients. UV protection with sunglasses is recommended in everyone, not only those that work outside, and can be preventative. As summer draws near north of the equator, many people long for the warmth of the sun after a long winter (at least in New England!) and plan for the outdoor activities we love. Unfortunately, the impacts of all that fun-in-the-sun on the eyes must be kept in mind. Most people do not realize that 20% of all cataracts are the result of UV ray exposure, and that number has been dramatically increasing in recent years.
But what is this invisible threat exactly? And how does it impact us? Ultraviolet radiation is measured in nanometers (nm). It is categorized in three basic terms and classified by the strength of the UV ray:
UVC: These rays are below 280 nm. The upper atmosphere absorbs these, so they do not reach us, therefore protection from these rays is not overly necessary.UVB: These are between 315 – 380 nm. These manage …