1, not at liberty to wear someone else's Tiffany and Co Charm Bracelet Jewelry Outlet glasses, each spectacle lens, both the optical center of the lens, mirror leg length, the distance between the nose height of the tray are not the same, so you can't take someone else's glasses.
2, cannot distort frame glasses frames, hand-picking, when wearing glasses, spectacles glasses due to uneven stress and deformation, so when picking, glasses, be sure to use both hands. Should also regularly check the screws are loose on spectacle frames and frame deformation phenomena. If the screws are loose, tighten in a timely manner to avoid lens fall off break.
3, frames eyeglasses frame not too loose or too tight, distance Fake Oakleys Frogskins Sunglasses Cheap for Sale glasses two-mirror between your legs, bending of the legs to fit the mirror, spectacle is not too loose or too tight. Eyes must be on the optical center of the lens, or a Prism effect will occur, people appeared to see acid distortions, dizziness, dizzying, eye swelling, fatigue and other symptoms, even a squint.
4, when a lens stained ash or dirt, wipe dry mill take lenses than recommended wash thoroughly with a paper towel after you suck the moisture with special glasses cloth to dry. When the lens is dirty, we recommend using low concentrations of neutral detergent to clean rinse with water and then wipe dry.
5 do not participate in strenuous exercise, wearing glasses, because strenuous exercise may be smashed glasses, causing eye damage.
6, glasses must be handpicked, placed on the table must be on the convex face of the lens when not a high temperature such as heating, stoves, next to the object, not when placed inside a closed car in summer, and also not to wear Fake Oakleys Frogskins Sunglasses Cheap for Sale glasses to the sauna, since damage lenses of high temperature deformation of glasses and optical functions.