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For many years there has been an underground movement that teaches the idea that eye exercises can improve your vision. This article explains the philosophy in a nutshell: Improve Your Vision Naturally with Eye Exercises at least half of the population in the United States currently wears prescription glasses or contact lenses. Furthermore, possibly as [...]
Millions of people around the world suffer from forms of blindness caused by the failure of the retina’s rods and cones. However, the optic nerve is still intact. Therefore, if scientists could find a new way to pump electronic signals down the optic nerve, the brain would be able to see. In Australia, it appears [...]
You Asked: How does night vision work? — Joe, Bellville, Texas Marshall Brain Answers: Night vision is something built into the eyes of many species. In humans, night vision is provided by rod cells, as described here: Rod cells detect light in black and white, and (once they get used to darkness) can be extremely [...]
This video allows you to test yourself for change blindness. Watch the video before reading the rest of the post: You might have been surprised that you missed the changes, but it is completely normal for humans. The following video presents a fascinating experiment to demonstrate how strong change blindness can be. People come up [...]
20-20 vision is a standard used to compare one person’s vision to another’s. Learn more about 20-20 vision in this podcast from HowStuffWorks.
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