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 - 瞳孔 眼睛 個影片檔及 b 捲影像00:07
detailed anatomy of the human eye showcasing internal structure and surrounding tissues. 3d animation - 瞳孔 眼睛 個影片檔及 b 捲影像00:11
extreme close-up of a beautiful young woman looking directly into camera; retro scene is 16mm black and white and features gate weave. - 瞳孔 眼睛 個影片檔及 b 捲影像00:05
little boy sitting in a park bench scratching his eyes because he is suffering an allergy episode - 瞳孔 眼睛 個影片檔及 b 捲影像00:09抓癢
