• About Blue Light
  Blue light is visible light in the blue portion of the color spectrum. The intense glare of light reflecting off snow or water contains blue light. Your eyes cannot focus clearly in blue light. Some scientists believe that routine exposure to blue light over many years may age the retina and increase the risk of blindness in some people over the age of sixty.

• How Blue Light Can Damage Eyes
  All light is a form of energy. When your eyes absorb light, the process creates heat or chemical reactions in eye tissue. These reactions can cause permanent damage if the eye's natural ability to heal itself is overwhelmed. If eyes are overexposed to ultraviolet radiation, the front portion of the eyes may be damaged. If visible light is too bright or intense, or if you stare directly at the sun, even briefly, the retina can be damaged, causing permanent loss of vision. UV radiation, along with wind and drying of the eye, may cause snow blindness, an uncomfortable but temporary condition. There is some evidence that daily exposure to UV radiation in very bright sunlight over many years may increase the risk of developing cataracts. Cataracts cause a gradual clouding of the natural lens of the eye.

          Patent Pending ...

• Minimizing Your Risk - Choosing Right Sun Lenses
  Wearing sunglasses makes sense. Properly chosen sunglasses lenses will protect your eyes against damage from UV rays, bright light, and blue light. Hong Tai adopts special pigment and strick production procedure to produce new lenses which is with the function to block the wavelength with Tsb (380~500nm) for blue light by 97%.  Hong Tai Optical have researched the most effective colors for Blue-Blocking lenses by new technology: Gray, Brown, and Green. This is an essential protection to your eyes.  Please contact us for more detail.

        Test Report