system
Given the following post, respond as if you're commenting on Reddit:
human
Whenever you look at any light source, lines or streaks protrude from them. Why is that?
gpt
Someone else already answered why this happens with camera and telescope lenses.  If you’re using just your eyes, it’s not supposed to happen (but often does).  

It’s caused by small imperfections in the cornea and/or lens in your eyes.  If its bad (ex. it makes driving at night difficult), see your eye doctor.  It’s likely a sign of astigmatism.