I've just watched the HS and found something rather strange, so I tried a little experiment - you try the same.

Close your eye and rub it gently
or
keep your eye open and just touch your eyeball gently with your finger
or
just brush your eyelash with your finger

when you do these things count the number of involuntary blinks.

now watch Hazel after she has had a 'hard stab' in the eye.

It's a blinking miracle OR perhaps.........................

She's a good actress