World Super-vision question: either eye or both?

[ariellem]

While making dinner, one of our kids asked us: "Can Superman shoot heat vision out of only one eye? Can he blink it?"

Stumped us. I know he can vary and focus his heat vision - its intensity and the field of effect - but...?

We *assume* the answer is yes, but can't recall any instances of this in the TV shows or movies, and I don't remember noticing any one-eyed super-vision (of any type) in the comics that I've read (far from all of the ones out there). I suppose it would depend on how his heat vision works/where in the brain the heat beam is generated - is it only generated when his eyes are working in tandem, or is it an either-eye-or-both power?

Is there a canonical answer for this/evidence for or against anywhere?

What about his X-ray vision? Telescopic vision? Microscopic?
Since these are receptive rather than emissive, the answer could be different than for heat vision.

Tried some Google searches; checked Wikipedia's "Powers and Abilities of Superman"; no info either way.

Thanks!

 

[CLARKY]

Since I think the powers of Superman are extensions of what "can do" a human body, I don't see one of his abilities hurt him. When he closes his eyes (or just one) the "laser" is stopped or he can't see through it. That's how I see it. I don't take it as canonical but I think his powers have to be simple. IMHO, I keep it simple!

 

[ariellem]

Thanks for responding... I didn't suggest that his vision would hurt his eye(lid) when it was closed, though. I was asking whether he is able to use each of those types of vision with just one eye (the other eye being closed, covered, or possibly just not used for that type of vision).

 

[CLARKY]

of course.
I think I missed something somewhere. I suppose there are no canonical proof of it ... but yes, he can ...