The Jiangsu Provincial Quality Supervision Bureau announced the results of spot checks on spectacle frames and lenses on May 16. Although the pass rate of the spot checks reached more than 95%, the quality inspectors still reminded some precautions when buying glasses.
There are two unqualified indicators for frames
The provincial quality supervision department conducted a random inspection of 92 batches of spectacle frames, of which 89 batches were qualified, and the pass rate was 96.7%. Unqualified items mainly focus on the two indicators of dimensional deviation and fatigue resistance. The quality inspection personnel said that the unqualified size deviation of the frame will cause the calculation of the lens centering amount to be wrong, resulting in the inconsistency of the optical center distance of the glasses and the human pupil distance, causing dizziness and eye swelling. The fatigue resistance item is the amount of permanent deformation that occurs after the spectacle frame test. The spectacle frame has a large amount of deformation, and it will slide uncontrollably when worn, even affecting the optical performance.
Don't forget to distinguish the pros and cons of the coating
Frames of poor quality are prone to deformation during use, which affects the optical performance of the glasses. Quality inspectors recommend that consumers prefer to choose frames with light weight and stable structure, and do n’t forget to distinguish between the advantages and disadvantages of the coating. The spectacle frames with better coating are uniform in color, smooth on the surface, without obvious concave and convex particles, with good hand feeling and clear marking. Eyeglass frames with poor coating quality may exhibit rust on the frame, skin discomfort, or allergies.
The pass rate of spectacle lenses is 98%
It is reported that the optical resin lens industry is mainly concentrated in Danyang City, Jiangsu Province. The quality inspectors conducted a random inspection of 51 batches of spectacle lenses, of which 50 batches were qualified, and the pass rate was 98%. One batch of product logo items failed, and the label content information was not marked according to the standard. Quality inspectors suggest that consumers should pay more attention when purchasing, and can ask the optician to show the packaging bag of the equipped lens, by checking the top power value, optical center thickness, using the standard number, the name and address of the manufacturer or supplier And other relevant information to distinguish the pros and cons of the lens.
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