The American Optician

Spring 2017

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1 5 E verybody knows that eyeglasses are a fun and exciting fashion accessory, but those stylish eyeglasses also must function property, hold up under use and provide protection for the wearer. How do frame, lens and coating manufacturers determine the quality of their products? There are two ways they do this: in-house testing and independent testing. Utilizing both methods helps manufacturers achieve quality products. TESTING In-house testing occurs during the product's development phase. Manufacturers know how they want a new product to perform. Their in-house testing provides data they need to assess a product's performance. Watch this video to see some of the tests Oakley conducts on their eyewear . Another method is to have the product tested by an independent testing laboratory. Independent optical testing laboratories test frames, lenses, coatings and other optical products using a wide variety of tests, including those required by standards, laws and regulations. COLTS Laboratories and NSL Analytical are two popular facilities. More importantly, they provide manufacturers unbiased documentation of the product's performance. While manufacturers must meet government regulations and strive for industry standards, they are also concerned about many more quality and performance issues than these agencies require. Independent testing laboratories can give them the data they need to ensure the quality they desire. Ophthalmic lenses are mainly tested for abrasion, adhesion and simulated exposure, strength, and tinting and dying consistency. Frames are tested in a variety of ways to determine their strength, durability, resistance ASSURING QUALITY How Eyeglass Frames and Lenses are Tested

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