Why can't you see colors well in the dark? Do fish have eyelids? Why does saltwater sting your eyes? Select a video below to get answers to questions like these and more with our Ask a Scientist video series.
What do my eyes do when I’m sleeping?
Dr. Cheri Wiggs explains what our eyes do while we sleep and why we can't see colors well in the dark.
What does it mean to be nearsighted or farsighted?
Dr. Cheri Wiggs talks about what happens to our eyes when we cry and what it means to be nearsighted or farsighted.
Do fish have eyelids?
Dr. James Raber answers whether fish have eyelids and if animals get blurry vision.
Why don’t all animal eyes look the same?
Dr. James Raber answers questions like why all animal eyes don’t look the same and if dogs see the same way humans do.
Why does salt water sting my eyes?
Dr. Michael Steinmetz explains why salt water stings our eyes, why it does not sting whales' eyes, and whether opening our eyes in a pool is harmful.
Is perfect vision real?
Dr. Rachel Bishop explains the concept of perfect vision, how glasses work, and how we can tell if we need glasses.
Are these common eye-related myths true or false?
Dr. Emily Chew sheds light on common eye-related myths to tell us fact vs. fiction.
Why did you become a scientist?
Dr. Pat Becerra shares why she became a scientist and encourages girls who are interested in science to pursue this interest.
What is an optical illusion?
Dr. Matt McMahon explains optical illusions and how they play tricks on our eyes.
What is color blindness?
Dr. Sheldon Miller answers questions about color blindness, whether it can be treated, and how people become color blind.
How do I become a scientist?
Dr. Chris Thomas answers questions about becoming a scientist and the variety of jobs they do.
Did You Know?
An eagle’s eyesight is about five times sharper than a human’s. That means what you see clearly from five feet away, an eagle can see clearly from 25 feet away.