Today, there are many online eyeglass stores on the Internet. People like to buy glasses online because they are cheaper. Prescription glasses for sale at the local store are often expensive. By buying prescription glasses online, you will be able to save a great deal of money.
Polycarbonate glasses are specifically designed to be impact resistant. People who participate in sports activities must wear polycarbonate glasses. Polycarbonate glasses will not break or scratch.
Aspheric lenses are different from standard lenses. Most aspheric lenses have a spherical shape. The surface of aspheric lenses can be formed by different degrees of curvature. It has a thinner and flatter appearance compared to other lenses. Aspherical lenses have a larger visible part compared to standard lenses.
Polarized prescription glasses can block light that bounces off water or a flat surface. The lens is designed in such a way that glare from sunlight during sports activities is reduced. Polarized sunglasses can also be worn while driving.
Photochromic lenses are lenses that can change color when light shines on them. Photochromic lens materials can be glass or plastic. If you wear photochromic glasses, you no longer have to wear sunglasses. The photochromic lens will not darken inside the car if the windshield blocks the sun’s ultraviolet rays.
Bifocal lenses are multifocal lenses that are divided into two sections. The upper part of the prescription glasses corrects farsightedness while the lower part corrects myopia. Bifocal lenses are commonly worn by people age 40 and older. Starting at age 40, your eyesight will begin to decline.
Trifocal lenses are bifocal lenses that have a third section. The trifocal lens helps people see objects in the middle zone, like your computer screen.
The shape of the lens largely depends on the type of vision problem you have. The concave lens is prescribed for people who suffer from nearsightedness. The convex lens is used in people who suffer from hyperopia problems. Astigmatism can be corrected with cylinder-shaped lenses. The purpose of the eyeglass lens is to focus the beam of sunlight on the retina. The best thing is that you buy prescription glasses that are branded. Brand glasses are made of higher quality materials, so they are not easily damaged. The cost of a brand name eyeglass ranges from $200 to $700.