Phosphenes and retinal images. 19th-century artwork of the different positions of rings of light (right) caused by placing pressure on the eyeball with a finger (left). These patterns are called phosphenes,in this case caused by mechanical pressure on the retina. This artwork is from 'Essai sur les phosphenes' (Essay on Phosphenes,1853) by French physician Henri Auguste Serre (1802-1870) | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / King's College London |
Taille de l’image : | 3581 px × 4919 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |