Summer's almost here, so beware the brightest of sunlight! To protect your eyesight, the most important recommendation you need to follow is to wear sunglasses that block ultraviolet radiation whenever you go outside during daylight hours, according to the National Eye Institute. This is true for everyone, no matter what age, year round.
Ultraviolet radiation is the energy radiated by the sun that arrives on Earth in wavelengths too short for us to see. Both UVA (waves that are 320 to 400 nanometers long) and UVB radiation (290 to 320 nanometers long) can be harmful to your eyes. The fix, though, is simple.