How Do Sunglasses Protect Your Eyes from Harmful TUV Radiation?
Exposure to ultraviolet (UV) radiation from the sun carries risks of eye damage if left unprotected. Sunglasses serve as an important shield against these invisible yet potentially harmful rays. But how exactly do they work to protect your eyes against TUV radiation? What is TUV Radiation? TUV refers specifically to UVC rays, which fall in the 100-290 nanometer (nm) range on the light spectrum. Along with UVA and UVB rays, they are part of the ultraviolet radiation that reaches Earth from the sun. TUV rays have the shortest wavelength but highest energy of the three UV types. However, the ozone layer blocks most UVC rays from reaching Earth’s surface. Only small amounts interact with the upper atmosphere. TUV Radiation Risks Although UVC exposure is less concerning than UVA/UVB due to the ozone filtering, TUV rays can still pose risks. Even minimal exposure can lead to eye conditions like: – Photokeratitis – inflammation of the cornea – Conjunctivitis – inflammation of the outer e...