DK Clip Art

Explore thousands of images from DK’s photo library. Perfect for illustrating homework, school projects and generally being creative, you can browse our clip art by A-Z or by school subjects.

Images 27 of 165 - Eye focusing 2
Add to My Project Save image to desktop
    Eye focusing 2
Description:
In dim light, the iris makes the pupil of the eye larger to try and get as much light into the eyeball as possible. The iris does this by relaxing the muscle near the pupil, and contracting the radial fibres that are joined to its outer perimeter. The iris muscles are shown in red.
3 of 14 pages
Inside the eye
Eye focusing
Eye focusing 2
Eye on retina
Image formation
Eye focusing distant
Eye focusing close-up
Ear structure
Ear drum
Balance organs
Upright macula
Displaced macula