ANSI Z80.21-2020: Clinical Visual Acuity Charts
Cover your right eye. Read the letter on the first line. Cover your left eye. Read it again. Now line two, and so on. This […]
Ophthalmic Standards
ANSI Z80.10-2018, American National Standard for Tonometers
ANSI Z80.10-2018: Ophthalmics – Ophthalmic Instruments – Tonometers, an American National Standard, specifies tonometers. What Are Tonometers? The human eye is a remarkably complex organ, […]
ANSI Z80.28-2017: Ophthalmics – Methods of Reporting Optical Aberrations of Eyes
The newly-revised American National Standard ANSI Z80.28-2017: Ophthalmics – Methods of Reporting Optical Aberrations of Eyes is initiated by the short and simple scope, “This […]
ANSI Z80.3 – Sunglasses Requirements
ANSI Z80.3, as stated in the standard itself, is meant to “establish standards for noncorrective (essentially plano power) lenses that are intended for attenuation of […]
Ophthalmic Standards
Ophthalmic standards are numerous, reflecting the range and complexity of ophthalmic procedures, instruments, implants, and devices. Given the delicateness intrinsic to working with something as […]