system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If a magnifying glass will magnify the sun’s rays, then wouldn’t wearing prescription glasses actually be dangerous for our eyes?

If so, does prescription glasses that come with photochromatic or polarised lenses help to combat this?
gpt
All lenses focus light, including the lens in your eye. Prescription glasses just move that focal point to where it should be, they don’t collect any more light than your eyes do. That being said - Do you look directly in the sun when you wear glasses (or when you aren’t)? That is dangerous, with or without glasses because sunlight is strong enough to damage your retina permanently.