
OPHTHALMIC OPTICS - VISUAL ACUITY TESTING - STANDARD AND CLINICAL OPTOTYPES AND THEIR PRESENTATION
出版:International Organization for Standardization

专家解读视频
Describes a range of Landolt ring optotypes and describes a method for measuring distance visual acuity under photopic conditions for the purposes of certification or licensing.
16/30339693 DC : 0 - Identical
16/30339693 DC : 0 - Identical
DIN 58220-1 : 1988 - Corresponds