Visual perception
Size
Testing conditions
Ophthalmology
Grades (quality)
Ophthalmic test equipment
Dimensions
Ophthalmic equipment
Luminance
Optical measurement
Optical instruments
Standard measures
Angles (geometry)
Link: BS EN ISO 8596:2018 Ophthalmic optics. Visual acuity testing. Standard and clinical optotypes and their presentation
Source: BSI Standards
