Underwater vision

When we go underwater, it can be hard to see clearly because light travels differently in water compared to air. Our eyes are not built to handle that difference.

One way to help us see better underwater is to wear special goggles called "swim goggles." These are like clear glasses that create a small air pocket around our eyes to help us see clearly.

But even with swim goggles, things can still look different underwater. Colors can appear dull or change, and objects may appear closer or farther away than they really are.

The reason for this is because different colors of light travel through water differently. Red and orange light doesn't travel very far, so they appear more muted underwater. Blue and green light, on the other hand, can travel much farther, so things underwater often seem more blue or green.

Overall, while we can see underwater with the help of swim goggles, things may look a bit different than they do on land due to the way light travels through water.