What are the effects of astigmatism?

blurry vision, difficulty driving at night with halos around headlights and streetlights making it difficult to drive.

It's when the eyeball is not perfectly round.

Please specify. Psychological effects are any effect that an ingested substance has on your cognition. If it makes you think differently, see differently, hear differently, etc, that's a...

you can have all sorts of effects like paranoia, blood pressure, aggression, high body temperature, cravings(addiction) loss of sence giggling fits, panic attacks, suicide, and anxiety

A psychological phenomenon whereby people do something primarily because other people are doing it, regardless of their own beliefs, which they may ignore or override. The bandwagon effect has wide...