When people's eyes have astigmatism, discount oakley sunglasses must be considered when equipped with axial Oakley sunglasses astigmatic axis error performance with the human eye's astigmatism axis bit inconsistent. Outside the allowable range,http://www.oakleysunglassessalez.com/ the wearer will double as the uneven depending on the material or images is not correct, headache, nausea, visual fatigue and other phenomena. The supervision and checking of the unqualified items are of the total failure of one-third. Cause of the main reasons for failure of these two indicators: First, the production of Oakley sunglasses piece mold is inaccurate or the accuracy is not high; manufacturing process, backward means; backward Third, measuring and testing equipment, or does not have the necessary measuring and testing devices.
The supervision and checking of old oakley sunglasses sample pass rate of 95%, than over the supervision and checking of sample pass rate of 85.1% in 2007 to nearly 10 percent. Supervision and checking are of failure mainly the optical center of the horizontal deviation of the total 50% of the failed item. The deviation of the optical center is an important indicator. This indicator exceeds the allowable range; the wearer will appear as fatigue, dizziness, eye swelling, strabismus, and many other negative phenomena, Oakley sunglasses serious impact the health of the wearer's vision.
Cause the main reasons for failure of the indicators: the cheap oakley sunglasses enterprises lack the necessary processing and assembly equipment or equipment aging, the accuracy is not high. Lower professional and technical level of processing and assembly personnel, can not control or production of qualified products meet national standards; is not equipped with quality inspectors failed to Oakley sunglasses product for factory inspection;, to reduce production costs, the use of qualified Oakley sunglasses.
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