I don't need it to be night to realise that. I have -13 on both eyes, near-sightedness (not sure about the correct terminology in English). I see clearly for about one centimetre right by the tip of my nose, everything closer or further than that is a blurry and fuzzy mess. To use my phone without glasses I have to press it against my nose and can only see about half of the screen width clearly.
It's also not risk free. There are tons of YouTube videos talking about people's bad experiences with it including possible side effects, some of which are a dealbreaker for me like a mouse cursor having starbursts. No thank you, I will take my glasses over that. I'd never opt for eye surgery unless medically necessary.