eyes and vision - part 7 of 17. explains the structure and functions of the human eye and describes the complicated mechanism of human vision: how the retinal image is inverted; how the lens focuses; and how the pupils regulate the amount of light enterin - vitreous eye stock videos & royalty-free footage00:32Eyes and Vision - part 7 of 17. Explains the structure and functions of the human eye and describes the complicated mechanism of human vision: how the retinal image is inverted; how the lens focuses; and how the pupils regulate the amount of light enterin
detached retina, ultrasound scan - vitreous eye stock videos & royalty-free footage00:12Detached retina, ultrasound scan