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ANSI Z80.20-2016 (R2021)
Ophthalmics - Contact Lenses - Standard Terminology, Tolerances, Measurements and Physicochemical Properties
Applies to contact lenses worn over the front surface of the eye in contact with the preocular tear film. The standard covers rigid intracorneal and haptic (scleral) contact lenses, as well as soft paralimbal contact lenses.
VC (ASC Z80): Vision Council [vc (asc z80)]