Glasses,Eyeglasses,Sunglasses

Sportswear eyeglasses refer to those safety goggles worn by people when participating in sports. They have functions of safety, protection, comfort and beauty. To achieve all those functions, requirements on both lenses and frames are necessary. The lenses for sportswear eyeglasses could be the PC lenses, which are also called space lenses. They are breakage-proof and anti-cracking, and of 100% security. It is reported that PC lenses have been applied in the production of bullet-proof glasses, so they could protect the wears’ eyes when they embark on strenuous exercises. Into the bargain, PC lenses are the lightest and thinnest eyeglass lenses at present. They are 57% lighter than the glass lenses, and 37% lighter and 26% thinner than the resin lenses. Besides PC lenses, magnesium alloy lenses are widely applied in the production of sportswear eyeglass lenses as well. Magnesium alloys are 2/5 lighter than titanium and 2/3 than aluminium. Their merits over PC lenses are that they

When it comes to choosing eyeglass lenses, it’s no longer a simple choice of “glass or plastic?” Let’s look at your many options in eyeglass lenses in detail: Want thinner, lighter lenses? Choose a high index lens material. Nearly everyone can benefit from thinner, lighter lenses. High index lenses can be up to 50% thinner than regular glass or plastic lenses, and they’re usually much lighter, too. Though these lenses are especially beneficial if you have a strong eyeglasses prescription, they can make a noticeable difference in the appearance of virtually any pair of glasses. High index lenses bend light more efficiently than regular glass or plastic lenses, so less lens material is required to correct your vision. Various high index lenses are available today in different price points based on how much thinner they are compared to regular plastic lenses. The lenses are classified by their “index of refraction” (or “refractive

What Types of Lenses Are Available? As technology advances so, too, do eyeglass lenses. In the past, eyeglass lenses were made exclusively of glass. Today most eyeglasses are made of high-tech plastics. These new lenses are lighter, do not break as easily as glass lenses, and can be treated with a filter to shield your eyes from damaging ultraviolet light. The following modern eyeglass lenses are lighter, thinner, and more scratch-resistant than glass lenses or the older, common plastic lenses. Polycarbonate lenses. These eyeglass lenses are impact resistant and are a good choice for people who regularly participate in sporting activities, work in a job environment in which their eyeglasses may be easily scratched or broken, and for children who may easily drop and scratch their eyeglasses. Photochromic and tinted lenses. Made from either glass or plastic, these eyeglasses change from clear to tinted when exposed to sunlight. This eliminates the need for prescription

Comfort, fit and durability rank high with men when it comes to choosing their eyeglasses. While men are concerned with style, they won’t forsake comfort and fit just to look good. Men have their own tastes, but it may be a wife, girlfriend or significant other who will influence the final style or color of the frame. About 88 percent of the respondents to a survey by The Vision Council* indicated that the comfort and fit of the eyeglasses was the most important factor in choosing an eyeglass frame, while 59 percent said that the durability of the eyeglasses was most important to them. When asked what adds value to their eyewear choice, 52 percent of the survey respondents said that spring hinges (which prevent you from stretching the fit of your eyeglasses) are most important. About half said frames that are flexible and bend so they won’t break easily (such as those made of Marchon’s Flexon material, for example) are most important. Comfort and Fit Here are some

 After choosing the style and color of the frames, you may opt for basic lenses that are customized to your prescription and to fit the shape of your frames, but there are several types of lenses available, at additional costs, that include more features than a regular lens. step1: Reduce eye strain from night driving and computer screens with metal oxide-coated lenses. This produces an anti-reflective property that helps to decrease reflections and glare for safer driving and fewer headaches. step2: Opt for a high-index lens if you have a very strong prescription. A basic lens will be very thick, or like a “Coke bottle,” but high-index lenses are made from plastic or thin glass for a more chic appearance. step3: Block dangerous ultraviolet (UV) rays with polarized lenses, which offer protection from the sun and better color definition. Also consider photochromatic lenses for automatic UV protection; these lenses look like clear lenses indoors and become darker, like