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Single Vision Stock / Grind
Single vision lenses are those that have the same focal power throughout the lens. They can be used to treat short-sightedness, far-sightedness or astigmatism.
The conventional stock lenses provide sharp view at the center of the lens, with some distortion in the peripheral areas. The lenses are fitted to the particular wearer and optimised for clear vision. Stock lenses are available in restricted power range only and are limited to frame sizes. While these lenses can be ideal for people that are short-sighted (minus powers), we recommend grind lenses for people that are long-sighted (especially high plus powers), that result in a thinner and lighter product.
Grind lenses are made with advanced optical design technology and are specially surfaced to the correct thickness for the dimensions of the frame. These lenses provide sharp view and minimal distortion in the peripheral areas. There are different lens technologies available to grind single vision lenses. Besides the standard grind lenses, CR Surfacing offers Digital and Digital Accuracy lens designs, that take single vision performance to the next level.
For general purpose, everyday wear, we recommend using Satin UV Anti-Reflecting Coating. Our Satin UV Anti-reflective coating is developed to improve vision by reducing glare, eliminate eyestrain by enhanced visual performance, protect your eye health by blocking UV rays, and enhance cosmetic appearance by cancelling out reflections on the lens surface. This coating also helps extend the life of the lenses. The Satin UV coating consists of layers specially formulated to create a scratch-resistant, water and dust repellent coat, making the lenses last longer. An ideal solution for everyday use, no matter the environment.
If you spend a lot of time on computers or digital devices, to give your eyes as much comfort as possible, we recommend to pair these lenses with Satin Blue coating. CR Surfacing’s special anti-reflective Satin Blue coating filters out harmful blue light coming from digital surfaces, as well as natural and artificial lights. Approximately one third of all visible light is blue light, a high-energy light that has a number of biological effects, including on the eye. Blue light penetrates all the way to the retina and can damage the light-sensitive cells and can increase the risk of age-related macular degeneration. Although not all blue light is bad, as it helps boost alertness, memory and cognitive function, the harmful wavelengths can be filtered out with Satin Blue coating, providing maximum comfort, enhanced visual performance and protection for your eyes.
Progressive lenses and the advantages of having them
Progressive lenses are no-line multifocal eyeglass lenses that look exactly the same as single vision lenses. In other words, progressive lenses will help you see clearly at all distances without those annoying (and age-defining) "bifocal lines" that are visible bifocals and trifocals.
Progressive lenses are line-free multifocals that have a seamless progression of added magnifying power for intermediate and near vision.
The power of progressive lenses changes gradually from point to point on the lens surface, providing the correct lens power for seeing objects clearly at virtually any distance.