UV rays may lead to macular degeneration, a leading cause of vision loss f UV rays, especially UV-B rays, may also cause some kinds of cataracts.

Are you thinking about UV?

Shedding some light on the myths In the Lebanon, UV exposure is the highest in the summer

-Yamout: UV exposure is the same all year round, whether it's summer, winter, spring or autumn You don't need to wear sunglasses on a cloudy day

-Yamout: Clouds only reduce the amount of UV by around 10 percent, so on an overcast day, remember to wear your shades UV damage to the eyes can be reversed

-Yamout: Unfortunately, sun damage to the eyes is cumulative. This means that it gradually builds up over time and can't be reversed. Children are more vulnerable to UV exposure than adults

-Yamout: As you get older, your lens naturally absorbs more UV to protect your retina. Kids under 5 have particularly vulnerable eyes, so it's especially important that they're protected. Darker tinted lenses will provide more UV protection

-Yamout: The tint of a sunglasses lens has no effect on UV protection, but does change the amount of light that goes into your eye. All sunglasses offer UV protection

-Yamout: Not all sunglasses are made equal! Look out for shades with the CE mark to guarantee they meet the European standard for UV protection. People with blue eyes are more at risk of UV damage

Yamout: Blue eyes contain less of a protective pigment called melanin, which makes UV exposure more of a risk for people with blue eyes than it is for those with darker eyes. Your eye is 10x more sensitive to UV than your skin

-Yamout: Your eyes are even more susceptible to burning than your skin. With the lasting damage that UV exposure can cause, it's a good idea to wear sunglasses to avoid burning. UV levels are higher in tropical areas Yamout: UV levels are more intense at both higher altitudes and in tropical areas near the equator. The further you live from the equator, the less risk there is. Exposure to UV can lead to eye condition

-Yamout: Frequent exposure to UV can lead to the development of cataracts and possibly macular degeneration, which can both impair sight. All car windows have UV filters Yamout: A study in the U.S. found that side windows blocked only 71 % rays, compared with 96 % in the windscreen

UVA has a wavelength of 380-315 nanometers and when contacting the skin can penetrate beyond the outer layer (epidermis) into a layer called the dermis.

UVA does not stimulate vitamin D production. UVB light has a wavelength of 315-290 nanometers and penetrates only the epidermis when it contacts the skin & Eye

UVB stimulates the skin, which then produces vitamin D.

UVC light has a wavelength of 280-10 nanometers and is filtered out by the Earth’s outer atmosphere. It is an invisible part of the solar spectrum.