Ophthalmic optics and instruments - Electro-optical devices for enhancing low vision (ISO/FDIS 15254:2009); German version FprEN ISO 15254:2009— 12 стр.
Ophthalmic instruments - Fundamental requirements and test methods - Part 1: General requirements applicable to all ophthalmic instruments (ISO 15004-1:2006)— 17 стр.