Ultraviolet (UV) radiation is a form of electromagnetic radiation that is invisible to the human eye. UV radiation can be harmful to the eyes, causing a variety of problems, including:
- Cataracts: Cataracts are a clouding of the lens in the eye that can cause blurred vision.
- Macular degeneration: Macular degeneration is a disease that damages the macula, the part of the retina responsible for central vision.
- Pterygium: Pterygium is a growth on the white of the eye that can block vision.
- Conjunctivitis: Conjunctivitis is an inflammation of the conjunctiva, the clear membrane that lines the eyelids and covers the white of the eye.
In addition to protecting your eyes from UV radiation, sunglasses can also offer other benefits, such as:
- Reducing glare: Glare can make it difficult to see, especially when driving or playing sports. Sunglasses can help to reduce glare by absorbing or reflecting the light.
- Improving contrast: Sunglasses can help to improve contrast by filtering out certain wavelengths of light. This can make it easier to see objects in low-light conditions.
- Protecting your eyes from wind and dust: Sunglasses can help to protect your eyes from wind and dust, which can irritate the eyes and make it difficult to see.
protection. This will help to protect your eyes from the harmful effects of UV radiation and improve your vision.
Here are some tips for choosing sunglasses with UV protection:
- Look for sunglasses that have the label "100% UV protection" or "UV400 protection." This means that the sunglasses block 100% of both UVA and UVB rays.
- Choose sunglasses that fit snugly over your eyes. This will help to keep out wind and dust.
- Choose sunglasses with polarized lenses. Polarized lenses can help to reduce glare.
- Replace your sunglasses every two years, or sooner if the lenses are scratched or damaged.