Instructional Video5:19
TED-Ed

How Optical Illusions Trick Your Brain

9th - 12th Standards
What have our eyes and brains evolved to see? Discover the way our photo receptors and brains assemble visual information into the three-dimensional world we see around us.
Instructional Video
Crash Course

Crash Course A&p #18: Vision

9th - 10th
Next stop in our tour of your sensory systems? VISION. With a little help from an optical illusion, we take a look inside your eyes to try to figure out how your sense of vision works -- and how it can be tricked. [9:38]
Instructional Video
Scholastic

Scholastic: Study Jams! Science: The Human Body: The Senses: Seeing

2nd - 6th
Animated video, with an accompanying quiz, explains the structure and function of the eye.
Instructional Video
Wisc-Online

Wisc Online: The Sense of Sight

9th - 10th
Describes the important structures of the human eye and how they work so that we can see images. [4:47]
Instructional Video
Khan Academy

Khan Academy: Nervous System Physiology: Sight: Visual Sensory Information

9th - 10th
This video looks at the sense of sight and how light hits the photoreceptors in the eye, communicates with the brain, and translates the information into images we can see.
Instructional Video
Khan Academy

Khan Academy: The Phototransduction Cascade

9th - 10th
This video [9:55] explains photo-transduction cascade which is critical to our sense of vision. By Ronald Sahyouni.
Instructional Video
Sophia Learning

Sophia: How We See: Lesson 2

9th - 10th
This lesson will introduce you to the anatomy and physiology of the human visual system, its connection to the brain and how this system processes light. It is 2 of 3 in the series titled "How We See."