Dilated pupil. Enhanced image of a dilated pupil. The iris,a coloured muscular ring,regulates the amount of light that enters the eye through the pupil (black). Low light conditions,sexual arousal and certain drugs can cause the pupil to dilate (enlarge) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 4370 px × 4112 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |