Overexposing your eyes to ultraviolet rays can cause serious eye problems such as cataracts (clouding of the eye lens) and macular degeneration (breakdown of macula). The combination of UV protection that’s built into lenses and applied as a coating can block 98-100% of transmitted and reflected UVA and UVB rays.
Nothing will make your lenses scratch-proof, but a scratch-resistant coating can help prevent scratches from damaging your lenses (and interfering with your vision). Scratch-resistant lenses can minimize every day wear and tear and help you protect your investment in quality lenses.
Sharper Image® TechShield provides advanced protection against harmful blue light emitted by smartphones, tablets, computer monitors, televisions, LED and CFL lighting. TechShield has an attractive, near-clear appearance and also contains premium anti-reflective properties to further reduce eye strain, while protecting your lenses from scratching and smudges.
Anti-reflective coating can reduce eyestrain caused from glare, reflections, and the “halos” you see around lights at night. It helps protect your lenses from scratches and smudges, and can repel dust and water. This coating makes your vision sharper and your eyes appear clearer behind your lenses. Some anti-reflective coatings reduce the amount of reflected UV from the back of your lenses, providing the best overall UV protection possible.