When choosing designer sunglasses by the bulk, it is important to know the different terminology. Here is a list of the most common terms:
Absorption factor. The quantity of light that is absorbed by a lens with a particular tint.
Acuity. This refers to the lenses' ability to provide a clear picture.
Aviator Sunglasses. Features sunglasses that was popularized by pilots. Hence, the name "aviator". These usually have large lenses and a metal frame.
Blue blocking. This uses amber or yellow lenses to filter blue light and is believed to improve depth perception and visibility in sports such as skiing.
Bridge. The section of the sunglasses that fits over the nose so that the glasses are supported.
Carbon fiber. A durable material used in sunglass lenses that resists breaking and scratches.
Clip-on. This is clipped on to prescription glasses so that eyeglass wearers can also enjoy the benefits of sunglasses without compromising the quality of their vision.
Full rim. This refers to lenses that are enclosed entirely in the frame.
Glare. Refers to the reflection of the sunlight on flat surfaces such as road pavement, the windshield of cars and the ocean or lake. Glare provides more damage to the eyes because the strength of the sunlight is magnified.
Gradient lenses. "Gradient" refers to the shade or tint of the lens. Rather than one shade, these lenses make use of more than one shade. Single-gradient lenses have lighter tints at the bottom (to allow for clearer vision horizontally) but darker tints at the top (to protect from the sun's rays). Double-gradient lenses have light tints on the middle and darker tints both at the top and bottom of the lens.
Hard coating. This protects the lenses from scratches and breaking.
Hydrophobic lenses. This repels water or sweat to that the lenses remain clear and free from spots.
Impact Resistant. This means that the lenses are tough and will not easily shatter, even when hit by a flying object such as a ball. This provides an additional element of safety, especially when you have an active lifestyle.
Interchangeable lens. This features a pair of sunglasses that enables the user to switch from one type of lens to another to allow for changes in light conditions.
Lens tint. This refers to the thickness and color of the tint of the lens. Your choice of tint will depend on the light conditions.
Mirror-coated. This features a mirror-like coating on the lens, so that the sunglasses reflect more sunlight and decrease the light that penetrates into the eyes.
Nose pad. These keep a nice and comfortable fit for the sunglasses since this allows the pair to sit on the nose of the one wearing the pair.
Photochromic lenses. These lenses react to the amount of sunlight coming through. Thus, on bright light, the lens will automatically darken. When in low light, the lens clears and takes on a lighter tint.
Polarized. These refer to the kind of lenses that block glare reflected on flat surfaces such as bodies of water (oceans, lakes), pavement or metal. Wayfarer sunglasses with polarized lenses are great for fishing, sailing, driving and skiing.
Polycarbonate lenses. These are ideal for sunglass-wearers who lead an active lifestyle. These are very durable and will not shatter on impact and also resist scratches. Polycarbonate lenses also work to provide high visual clarity while shielding the eyes from the sun's rays.
Rimless. Also called "semi rim", this refers to a style where the lenses are only encased in the upper part of the sunglasses.
Side pieces. The part of the sunglasses that are used to hold the sunglasses in place by "anchoring" the pair behind the ears.
Ultraviolet (UV) rays. These are the harmful rays from the sun and are known to cause a variety of eye diseases. This is one of the reasons why wearing sunglasses is very important – to protect your eyes and the sensitive skin around the eyes. Look for wholesale sunglasses by the dozen that offer UV protection.
Wholesale sunglasses. This allows sunglass users to try a number of styles and save on the cost per unit. Designer wholesale sunglasses feature the most recent trends at a fraction of the cost.
Wraparound style. As the name suggests, the frame wraps around the temples, so that there is light protection from all angles. This style is ideal for outdoor sports such as biking or hiking, where you need to be protected not just from sunlight but also flying debris, dust and small stones.
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