Dilation and contraction of the pupil of the eye in response to changing light levels. The aperture of the pupil is controlled by the muscles of the iris, the coloured region surrounding the eye. | |
Licence : | Droits gérés |
Crédit : | Science Photo Library / Ammonite |
Model Release : | Le droit n'est pas encore disponible. Merci de nous contacter avant utilisation. |
Property release : | Non requis |
Durée : | 7 Secondes |
Aspect ratio : | 16/9 |
Restrictions : | - |