system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is it blurry when we look straight into water but clear when you wear goggles?
gpt
Because your eyes need air directly in front of them to be able to focus properly (its to do with the way that your cornea bends the light as it enters your eye; when touching water, nowhere near as much of this bending is possible).