That's called a 'starburst' and it happens in human eyes for all sorts of reasons. It's possible naturally and also as a LASIK complication, for instance. Look

That's called a 'starburst' and it happens in human eyes for all sorts of reasons. It's possible naturally and also as a LASIK complication, for instance. Look for 'starburst' here https://visionsimulations.com/ https://visionsimulations.com/ Sadly the simulation site is down because of the new Cross-Origin restrictions on images in canvases but perhaps you can see what it looks like in the preview images on the main page and if you google 'starburst vision'.