if you have astigmatism thats how dotsights appear, its normal.
you can tell if its the dot or your eyes by taking a picture through your dot sight. if the pic looks normal like a round dot and the sight while looking through it appears fuzzy or star pattern its your eyes. if both are the same its a malfunctioning sight.
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." L. Neil Smith
The problem with being stupid is you cannot simply decide to stop doing dumb things...
"I crapped my pants to avoid the draft!!" -Ted Nugent