Archive for the ‘Eyewear purchasing guidance’ category

Generally, each lens materials can block some light from passing through the lens. This light reflects back from the lens surface, causing distractions and reducing the clarity of night vision. Conventional glass or plastic lenses or polycarbonate lens can reflect about 8 percent of light that otherwise would reach the eye. High-index lenses reflect up to 50 percent more light than conventional glass or plastic lenses/polycarbonate lens.

If you have not owned a pair of RayBan eyeglasses/sunglasses, you can take advantage of an almost 50% discount just in time for spring break at Amazon, and feel what it’s like to be a part of the legacy. Their acetate frames are lightweight yet durable, their lenses have 100% UV protection coating, and their style is unparalleled. Note that some versions are polarized and others are not, so you’ll have to choose carefully between the 30+ designs available. And, of course, you’ll make sure you are getting the real deal through the official RayBan Amazon page below. Moreover, you also can try ezcontactsusa.com where you also can find RayBan eyeglasses with lowest price.

If your eyeglasses are tinted the blue-color coating, then they are able to block blue light. With blue light blocking coating, it is just the color that does it. There are no special filters, it’s just that amber color that does the job. Look up at the sky, you don’t see blue, all you see is a grayish/white sky but all other colors are vivid.