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Objective: Contract testing
of refractive and prismatic properties of various sunglass models
purchased at retail.
Procedure: A random sample
of 65 pairs of sunglasses, all considered to be popular models were
purchased on the open market. The samples were sent to ICS
Laboratories, Inc. of Brunswick, Ohio. There, the samples were
tested on the proper head form for the following ANSI Z87.1 tests:
Prismatic Power, Refractive Power, Prismatic Imbalance. Astigmatism,
and Definition. Upon completion of the testing at ICS Laboratories,
the samples that passed the ANSI Z87.1 test were taken to Dr. Nelso
Jun. O.D. for further definition testing. |
