Ophthalmic antireflection coatings are not normally considered to be in the same category as other traditional optical
coatings with respect to environmental damage. However, as a group, eyeglass lens wearers tend to subject their
optical-coated eyewear to a broader and more aggressive range of environmental aggressions than at first imagined.
This paper presents the environmental aggressions and, in some detail, the resultant coating defects observed in coated
ophthalmic optics. Further, development of test methods for defect replication, to enable product improvements will be
discussed. Real-life environments combine thermal, chemical, and mechanical "aggressions" which spectacle lenses are
subjected to. These aggressions generate optical coating defects and failure modes involving abrasion, corrosion, and
loss of adhesion. In addition, market forces driven by retail customer perceptions lead to product liabilities not
normally considered to be of any consequence in traditional optical coating applications.