In General, in accordance with the material of the Fake Oakleys Frogskins Sunglasses Cheap for Sale lens can be divided into two broad categories, namely, glass lenses and optical resin lens.

1 optical glass, glass lenses, including lenses and high refractive index lens (that is commonly referred to as super thin slices), its high hardness and good resistance to abrasion, the parameters of its quality and will not change over time, but the impact resistance, and weight of glass lenses slightly worse than plastic lenses. Due to its high weight, low impact resistance, not safe, so for now, the market has gradually been eliminated, mainstream or resin lens with light weight, good security.

2 mainstream resin lenses are much lighter than glass lenses, and impact resistance than glass, but its low surface hardness, more easily bruised. Resin and coated lenses due to its characteristics is relatively soft, so they should be careful not to let the mirror surface in direct contact with hard objects, scrubbing is best to use water (or mixing a small amount of dishwashing liquid) cleaning and then using a special test on Tiffany and Co Necklace Jewelry Outlet Store cloth or cotton paper quality lens dry eye drops. Moreover, in poor environmental conditions place coated lenses should be used with caution to avoid stained with dirt is difficult to clean. As technology develops, resin lenses also have a lot of functional lenses are used in the clinical, such as specially designed aspheric design lenses, older progressive lenses, exciter polarized glasses, part of postoperative anti-Blu-ray lens after cataract surgery, can solve the problem of poor visual quality for people.

In front of the opticians, optometry and ophthalmic examination must first do, not blindly buy glasses for such products, should go to the ophthalmic optician medical optometric Center of the hospital. Cheap Mac Cosmetics Makeup wholesale Outlet Glasses should obtain glasses from Agency documents; confirm the quality of processed data, if there is quality problem, should get in touch with institutions, the proper solution.

How to choose eyeglass lenses