What should you do if you are studying for a test and your glasses break? The video introduces an easy way to instantly improve your vision. It discusses why it works and the physics behind vision, lenses, and focus.

Why do dissonant noise cause a physical reaction of fear in humans? The video explains why some things sound scary and how we evolved to be more afraid of sounds than sights. It details how people constantly live in the past and how...

Humans can sense about 10,000 different odors. Young scientists explore how humans interpret the world around them using their senses. The instructor reminds learners of action potentials and the nervous system and then focuses on three...

A video explains the two most common vision problems, nearsightedness and farsightedness. It includes detail of what causes each and how they can be corrected using lenses and surgery. 

How can nocturnal animals see at night? Bigger eyes? More photoreceptors? Use this video to discover the amazing ways animals have adapted in order to see at night.

How do glasses help us see? Glasses correct refractive errors. A simple answer for a complex process that is detailed in a short video.

Take a look at the human eye through a different lens with this fun instructional video. Drawing the comparison between eyes and cameras, this resource helps young biologists better understand the anatomy and function of these...

Whether it's healing a cut or mending a broken bone, the human body is capable of some pretty amazing repair work, but does it have the power to reverse the blindness caused by genetic diseases? Following along as this...

Vision is arguably the most important of the five senses, but exactly how did we come by this amazing ability?  Find out with this engaging video on the 500 million year evolution of the human eye.

Ever find yourself looking at a clear blue sky and notice something that seems to be floating across your eye? Well, you're not alone. Watch this short video to find out exactly what causes this and other common visual phenomenon.

Two scientific concepts can be taught with this activity. First, the mixing of primary colors is demonstrated. As the color wheel spins, red, yellow, and blue are no longer visible; secondary colors orange, purple, and green appear in...

Two scientific concepts can be taught with this activity. First, the mixing of primary colors is demonstrated. As the color wheel spins, red, yellow, and blue are no longer visible; secondary colors orange, purple, and green appear in...

This video segment explores how humans perceive the world through vision. Footage from NOVA: "Mystery of the Senses: Vision." [4:11]

Tahera Ahmad is an outspoken young woman from a traditional Pakistani-American family. She is a coach and mentor for Muslims in high school while studying to be an Islamic chaplain. A trip to Egypt takes her out into the world for the...

Shmuly Yanklowitz is an intellectual rabbinical student at New York City's Yeshivat Chovevei Torah Rabbinical School and a passionate activist. A Modern Orthodox Jew, he feels compelled to break boundaries, to resist becoming an...

Next stop on our tour of the sensory systems is 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]

See how NBA player Corey Maggette monitors and processes movement out of the corner of his eye, and find out how this affects his reaction time in his sport. [4:57]

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]

This article tells what it is like to have a check-up at the doctor's office. Knowing what to expect takes away your fear and worry.

An illustrated, chronicled tutorial explaining the structure and function of the human eye. [8:56]

Animated video, with an accompanying quiz, explains the structure and function of the eye.

The story of a woman who lost her vision after a stroke. Her primary visual cortex was severely damaged. But then she began to see rain and other moving water. [3:34]

Describes the important structures of the human eye and how they work so that we can see images. [4:47]

Very basic overview and what occurs for people with color blindness. Contains many links to related articles.