Lens Materials and Treatments
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Lens Designs:
- Single Vision Lenses- Great all-purpose glasses for simple prescriptions. Popular choice for single-usage or occupational glasses (computer glasses, reading glasses).
- Progressive Bifocals- Progressive (no-line) lenses offer all the benefits of bifocals plus the cosmetic appearnce of single-vision lenses. They provide clear vision close-up, at a distance and at arms length.
- Computer Lenses- Access lens provides clear, uninterrupted vision from reading distance up to ten feet. Mid-range area is as large as the near vision range.
Lens Materials:
- Polycarbonate- The most impact resistant, strongest and safest material.
- Up to 26% thinner and 37% lighter than plastic
- Recommended for children
- UV protection inherent in this lens
- Up to 10 times stronger than conventional plastic lenses, and up to 60 times stronger than glass lenses
- Mid-Index Plastic- Up to 25% thinner and 28% lighter than plastic
- UV protection inherent in this lens
- Coated to improve scratch resistence
- Designed to minimize thickness and improve the cosmetic effect of the glasses
- Hi-Index Plastic- Up to 45% thinner and 45% lighter than plastic
- Designed to minimize thickness and improve cosmetic effect of the glasses
- Coated to imrpove scratch resistance
Aspheric Design:
An aspherical lens is a combination of multiple curves that have been blended together on the front surface of the lens to improve optics and cosmetics in stronger, higher prescrition power. The benefits or aspheric design:
- Provides the sharpest, crispest vision
- Sharper vision over a greater area of the lens
- Up to 30% lighter, and 25% thinner
- Eye magnification reduced on farsighted corrections
- Eye miniaturization reduced on nearsighted corrections
- Up to 30% flatter than a spherical lens
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Gives more freedom to choose from a wider variety of frame styles.
Lens Coatings
Anti-Reflective (AR) Coating
- Elliminates eyeglass glare by allowing more light through your lenses. Glasses will not show glare in photographs. Those with lots of public interaction like this feature.
- Allows for quicker contrast of images giving optimum vision.
- Light transmission is increased to 92.7% to 99.5%. This extra light improves your vision and appearance.
- Experience less eye strain and fatigue.
- Recommended for those who experience difficulty with night driving and street lights and head light glare.
Transitions
- A light sensitive tint that changes as the light changes. Transition lens products are activated by Ultraviolet (UV) rays. The higher the UV, the darker the tint. The lower the UV, the clearer the lens.
- Blocks 100% UVB rays and 99% UVA rays for maximum ultraviolet protection.
- Front side coated to improve scratch resistance.
Polarization
- Polarized lenses allow only selected light rays to reach the eyes. With the removal of the sun's glare, objects become more distinct and we see our surroundings in the most natural true colors.
- These lenses cut out much of the glare off of water, sand, cars and their windshields, pavement, snow, etc.
- Polarized lenses absorb 98% of the sun's damaging ultraviolet light. The polarized lenses protect the eyes against diseases and injuries such as pteryguim and snow blindness that involve ultraviolet damage to the eye.
