NEAR INFRARED RADIATION PROTECTION
Nines lenses not only block harmful Near Infrared light (NIR) but also keep lens clarity unlike other NIR lenses. NIR rays are very harmful for the eye, even though most Infrared light is broken down by the atmosphere there still is a high percentage that makes it through. Skin exposed to IR light provides a warning mechanism against thermal effect in the form of pain (direct sunlight against skin). Eyes, on the other hand, may not. Since the eye cannot detect IR, blinking or closing the eyes to help prevent or reduce damage may not happen. IR raises the internal temperature of the eye, essentially “baking” it. Medical studies indicate that prolonged IR exposure can lead to lens, cornea and retina damage, including cataracts, corneal ulcer.
ANTI-REFLECTIVE (AR) COATING
Light from the sun not only enters from the front of your sunglasses but from all sides including the back of the lens which can reflect light directly back into your eye. The ability of Anti-Reflective coating is to virtually eliminate reflections from the front and back surfaces of your sunglasses lenses while improving vision by reducing eye strain and fatigue. Anti-reflective coating also helps in repelling dirt and oils that come in contact with your lens