Curated OER
Insight Into Eyesight-How We See
In this functions of the human eye learning exercise students label A-E the correct function of each part of the eye on the provided diagram.
York University
York University: Blind Spot Test
Take this little test about the blind spot, then click on the red "explanation" button at the bottom of the page to find out what you just experienced.
Exploratorium
Exploratorium: Science Snacks: Blind Spot: To See, or Not to See
The blind spot in human vision is described and illustrated.
Optical Society
Optical Society of America: Optics for Kids: Bending Light
An experiment using a water lens that demonstrates how the eye sees an image. Accompanied by an explanation of what's happening, and a link to an article on refraction.