Do you nearsighted? You have Discount Oakleys Flak Jacket Sunglasses Cheap sunglasses? With your eyeglasses, right? How can I enjoy a good pair of glasses? First of all, is to test the premise of maximum light and secondly want to feel more comfortable when wearing glasses, not oppressed. Generally speaking not very clear to consumers how to opticians, to enjoy a good pair of myopic glasses, should pay attention to the following aspects of the problem.
1, Jiao Du is the eye's refractive error level, the unit for the diopter, symbol is d. Myopia "-" said hyperopia mirrors with a "+". Such as "wearing is 300 degrees of myopia, meaning that the glasses shall be equipped with a pair of glasses is Jiao Du -3.00D.
2, the particular symbolic significance on eyeglass frames: frames showing "48 19 138", the "48" means that the lens is the size 48m m, "19" means space between two lens (that is, width of nose) is 19mm, "138" means mirror leg length, according to GB standard provisions of the tiffany and co outlet eyeglass frames, these flags are marked in the mirror inside of the legs.
3 when the prescription opticians, and optometry, its prescription, often marked with "r", "l", "d" letter, which means they are: the "r" means right eye lens; "l" means left eye lens, "d" indicates interpupillary distance. For example: -3.00DS/-1.00DS 90, meaning: the left eye lens; 300 degrees of myopia and astigmatism of 100 degrees, the lens axis level 90.
Some people wearing nearsighted glasses after you just with a good feel not suited, walking a dizzy feeling. You might begin to wonder whether this time together with this pair of glasses.
Wearing nearsighted glasses if you are dizzy or afraid to walk, people might think that this is a normal reaction, many also note the instructions on the glasses. In fact, it's bad specs.
If wearing glasses Dizzy is axis of astigmatism is not allowed; particularly bright, see narrowing, is equipped with deep; nausea, vomiting is interpupillary distance is not allowed. This phenomenon appear in the low to medium myopia, worthy of a good pair of eyeglasses does not have this reaction.
Judging a myopic glasses and enjoy how well it has a very simple "proximity" test. After wearing Cheap Oakleys Frogskins Sunglasses Outlet glasses, stretch fingers close to test, if the eyes look very natural, look at long distance, if it is natural, then the eyewear optometry is accurate.