2021UNE-EN ISO 15253:2021 Ophthalmic optics and instruments - Optical and electro-optical devices for enhancing low vision (ISO 15253:2021) (Endorsed by Asociación Española de Normalización in September of 2021.)
2001UNE-EN ISO 15253:2001 Ophthalmic optics and instruments - Optical devices for enhancing low vision. (ISO 15253:2000)