6May 22nd，Jiangsu Provincial Bureau of Quality Supervision released the results of sampling inspection of glasses。Fitting glasses is a tool for correcting refractive errors，It is mainly processed and produced by glasses retail enterprises。A total of 186 batches of products were randomly inspected，Qualified 176 batches，The pass rate is 94.6%。
Spot checks found，6The spherical top power item of the batch product is unqualified、1The cylindrical top power item of the batch product is unqualified。Spherical top power deviation、The cylindrical top power deviation reflects the basic luminosity characteristics of the lens，It is also a functional indicator of its corrective vision。A large deviation in the top power of the spherical lens and the top power of the cylindrical lens is equivalent to increasing or decreasing the patient's refraction，As a result, the top power of the glasses does not match the diopter required by the patient，The patient's eyes are in a state of undercorrection or overcorrection for a long time，Produces eye strain。
Spot checking，2The optical center level deviation item of the batch product is not qualified、2The one-sided horizontal deviation of the optical center of the batch product is unqualified，When worn, it will produce a prismatic effect in front of the eyes，Causes strabismus or other functional impairment of the eye。thereinto，The optical center horizontal deviation is the difference between the measured value of the horizontal distance of the optical center and the nominal value (interpupillary distance).，Unilateral horizontal deviation of optical center is the difference between the measured value of the horizontal unilateral distance of the optical center and the nominal value (unilateral interpupillary distance).。
furthermore，1The cylindrical mirror axial deviation item of the batch product is unqualified。This item is necessary to prescribe correction of astigmatism in the eye，It is directly related to vision correction and wearing effect。The deviation is too large，As a result, the direction of the axis of the spectacle column (i.e., astigmatism) does not coincide with the axis of the cylinder (astigmatism) of the spectacle fitter，Phenomena such as double vision occur when visualizing。There was also 1 batch of products that failed the assembly quality project，There is a noticeable gap in the glasses，This will lead to a reduction in the service life of the product，and affect the aesthetics and comfort of the product。
The quality supervision department recommends that consumers buy，Choose a qualified fitting shop。Check if the fitting shop has a business license and other necessary documents，Whether there is a necessary environment for optometry and glasses，optometrist、Whether the fixed distribution worker has the corresponding professional certificate qualification。Pay attention to the quality of the spectacle frame and spectacle lens，Look at the lenses、Whether the frame has been obtained and affixed with the "QS" quality and safety mark，Whether the outer packaging has a certificate of conformity、Factory name and address、Contact number、Execution standards and other information；The actual surface of the lens should be smooth and clean、Perspective is clear、Uniform color、No blemishes and visible scratches；The frame plating should be shiny，The surface should be wrinkle-free、No corrosion spots, discoloration, etc。
Good quality glasses should be seen clearly after wearing、comfortable、long。Spectacle assembly、After adjustment，You can put on your glasses and take a walk，Look far、Close-up，Whether there is dizziness、disgusting、Eye pain and seeing if the ground is flat、Whether the fixed object is tilted or not。If you feel dizzy while wearing it，dim eyesight，Visual fatigue such as tears，You should take off your glasses and go outside to rest in time，In the exclusion of ocular diseases，Bad eye habits and other factors，Check whether there is a quality problem with the glasses in time。
The list of glasses product quality supervision and random inspection enterprises and the results .xls