Biology -Human Anatomy

The Human Eye and Animal Vision

Structure of the Eye

In general the eyes of all animals resemble simple cameras in that the lens of the eye forms an inverted image of objects in front of it and projects it onto the sensitive retina, which corresponds to the film in a camera.

The front of the eye mainly contains an elaborate array of structures which are mainly concerned with the refraction (ie bending) of light rays and bringing them into focus on the retina. The structure most directly involved is the lens.

The eye changes light rays into electrical signals then sends them to the brain, which interprets these electrical signals as visual images via the optic nerve.

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Complete the Reading and Summary Activity.



Journal Directions

Draw and label three creatures that use camouflage eye patterning for protection.


Raindrops by WoodWork


The amazing eye
Keystone Blind Association WebPage. This website is all about eye safety, eye science, and the prevention of blindness. Site also includes comprehensive glossary on eyes, as well as fun colour-in pages for kids.

This site is one of a series of kids health webpages and offers colourful cartoons, information and relevant FAQ's on optics and glasses

Nova Online
This selected region of the extensive Nova site provides some wonderful information about animal eyes. Site also includes an interactive drag and drop game which illustrates the different types of animal camoflage

The Eye Page
This site offers a colourful look at animal eyes in a unique layout. Lots of great pictures and fun snippets of information

The Eye Site
The Eye Site provides information on the human eye including: ocular anatomy, optics, eye diseases, vision and visual perception. Explore the human visual system and learn about your eyes.

The Human Eye
Clickable pictures available to help understand the anatomy of the human eye.
Fantastic site combining engaging flash graphic interface, with great information movies, and related activities. A great site for students to explore and offers explanations on a whole spectrum of topics.
Click for Brainpop's flash movie on vision and optics
Click for Brainpop's flash movie on light waves, refraction, and energy

Created By Kelly Little