You myopia it With over your eyes Your approach with eyes, right How can we fit into a bed of roses against them? First, the premise is to experience the biggest quasi-optical; secondly wearing Discount Oakleys Flak Jacket Sunglasses Cheap glasses to feel more comfortable, not intimidated. In general consumers are not very clear on how the glasses to glasses with a pair of roses, you should pay attention to the following aspects of the problem.
1, vertex represents the degree of refractive error of the human eye, in units of diopters, symbol d. Myopia with "-" indicates, hyperopia mirror with a "+" indicates. As "a wearer is 300 degrees of myopia, ie the vertex glasses should be allocated is-3.00d.
2, a particular symbolic significance glasses shelves: a frame indicates "4819138", the "48" indicates the lens size is 48m m, "19" represents the two lenses spaced (ie, nose width) is 19mm, "138" refers to the Temple length, according gb/t14214-93 "frames" standards, these signs are marked on the inside of the temple.
3, optometry prescription Tiffany and Co Key Necklace Jewelry Outlet glasses, the prescription is often labeled "r", "l", "d" and other letters are the meaning: "r" represents the right-eye lens; "l" represents the left-eye lens. " d "said IPD. Such as: -3.00ds/-1.00ds 90, its meaning: eye lens; myopia of 300 degrees / 100 degrees of astigmatism, cylinder axial 90.
Some people wear glasses just after with a good feel very suited, walking will have a smug feeling. This time you may begin to wonder whether his own experience with a good pair of glasses.
Just wear glasses, if a little dizzy or dare to walk, most people might think that this is a normal reaction, a lot of glasses and more note on this description. In fact, this is a spectacle worthy of a bad year.
If you wear glasses, dizziness, astigmatic axis is not allowed; particularly bright, narrow vision, is the degree with deep; nausea and vomiting, are not allowed to IPD. This phenomenon is often seen in the low myopia; well equipped glasses generally do not have such a reaction.
Determine how well glasses with a very simple "close" test. After wearing Cheap Oakleys Frogskins Sunglasses Outlet glasses, a finger test in a close look at, if the eyes look very natural, and then look at long-range, if it is natural, then this spectacle refraction is accurate.