Optician's eye test light box. Late 20th century. Included here are an AOX Snellen eye test chart (bottom right),an OXO fixation disparity test (bottom left),an astigmatic test chart fan chart (top),a duochrome test (red and green) with target objects known as Verhoeff's circles to test binocular vision. The tests can be illuminated as required | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Chillmaid, Martyn F. |
Taille de l’image : | 3420 px × 5110 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |