A lens treatment is a special additive that either bonds with the lens, or is built into the lens during the lens manufacturing process.
Common Lens Coatings & Treatments:
The UV rays in sunlight can be harmful to the eyes. Lenses that block 100% UV help to ward off various eye conditions and damage. There is no shortage of information about ultraviolet rays (UV) and how prolonged, unprotected exposure to UV can lead to skin damage. That is why it is recommended that we wear sunscreen when we’re in the sun for extended periods of time. Sunscreens offer various degrees of UV protection by filtering out or “blocking” the harmful, invisible UVA and UVB wavelengths of light. But did you know the same, serious approach to protecting your skin also applies to your eyes?
UV protection is critical to eye health. Over time, UV can contribute to serious age-related eye conditions or diseases such as cataracts and macular degeneration. That’s why wearing lenses with maximum UV protection is so very important. Because UV rays are always present outdoors—on sunny days, cloudy days and every day in between.
Unlike sunscreen that you apply and reapply, eyeglass lenses and sunglasses can have ultraviolet protection built into the lens, or applied as a lens treatment. Remember, although UV light is invisible to the human eye, it is always present. Your lenses, therefore, should always provide UV protection. This type of lens treatment is clear and not dependent on the level of tinting a lens has.
The most important thing you need to know about UV glasses is this: Be certain your eye wear provides near or exactly 100% UV protection against both UVA and UVB rays. Anything less is less than ideal for the short and long-term protection of your healthy sight.
Scratches on lenses are distracting and can cause blurred vision or glare. Scratch-resistant treatments imbued into the lens surface toughen up the lenses making them more durable. There’s no such thing as scratch-proof lenses. (Even glass lenses can be scratched!) But the coatings can make it much less likely that scratches will develop under normal usage conditions.
Many of today’s lens products have scratch-resistant protection built into the lens, but it’s not an automatic feature! Be sure to discuss scratch resistant lens options with your eye care professional.
Lens care for scratch-resistant glasses—Don’t forget, no treatment can completely protect eyeglass lenses from scratches. But you can help out! Remember to keep your glasses in a cushioned, sturdy case when not wearing them. Clean them regularly with warm, soapy water and dry them with a clean, soft cloth. Unfortunately, there is no way to “buff out” scratches without changing the prescription on the lens.
For fashion, comfort and clarity anti-reflective treatments are the way to go. They make the lens nearly invisible, and cut glare from headlights, computer screens and harsh lighting. More comfort. Better vision. Reduced glare from oncoming headlights. Greater cosmetic appeal.
An anti-reflective treatment applied on the front and the back of prescription lenses greatly reduces the light reflected by the lens surfaces. As a result, your eyes appear clearer behind the lenses, vision is more defined, and glare from reflected objects—especially headlights at night—is virtually eliminated. Plus, if you have a high-powered “strong” prescription, anti-reflective coating makes your eyes appear more natural.
How anti-reflective lenses works—Carefully calibrated layers of metal oxides are applied to the front and the back of the lenses. Each of these layers is designed to block reflected light. That includes glare, annoying reflections, and the hazy “halos” you often see around lights at night.
Take special care to use only the cleaning agents recommended by your eye care professional, as anti-reflective treatments are delicate by design. They work well for sunglasses, too.