Ophthalmic optics. Visual acuity testing. Standard and clinical optotypes and their presentation Ingestion-build-93833 This standard is applicable to

This standard is applicable to fixed installations and transportable equipment

Ensuring that the fracture toughness is suitable for the application also contributes towards environmental responsibility in terms of mitigating potential hazards

Manufacturers and suppliers of optical connectors

It is applicable to the analysis of gases containing constituents within the working ranges given in Table 1

This reference architecture does not restrict exploitation of other service architectures and aims at supporting the Mobile AIDC service models described in Clause 5

Ophthalmic optics. Visual acuity testing. Standard and clinical optotypes and their presentation Ingestion-build-93833 This standard is applicable to1 Scope This document specifies 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. This document is neither intended as a standard for clinical measurements nor for the certification of blindness or partial sight. Other optotypes used for clinical investigations are described in Annex A for information.