[Superman] Pupils, Irises, or Eyeballs? Where does his laser actually shoot from?

Because in Man of Steel, General Zod was shooting lasers out of his eye sockets, not exactly from his pupils, while Superman’s heat vision looked like it emitted directly from his iris. That alone makes you wonder: do all Kryptonians shoot heat vision from the same place, or do they have different laser exit points depending on how angry they are?

Then in Justice League Unlimited, Superman’s heat vision came out like razor-sharp beams right from the center of his eyes, almost definitely the pupils. But in Batman v Superman, his whole eyeballs started glowing before anything even fired. Is that an animation choice, a live-action upgrade, or some kind of heat-up mechanic?

Meanwhile, Darkseid’s Omega Beams bend around corners, chase targets, and blast out of his entire eye area. Compared to Superman’s perfectly straight, laser-pointer-like beams, it seems like Darkseid has curved mid-air control while Superman’s stuck with straight lines. Is that a power difference or just visual style?

In Injustice, Superman fires pinpoint beams straight through someone’s skull, dead-on from his pupils. But back in Smallville, teenage Clark just glows up his whole face like a microwave before finally firing. So maybe laser precision is something he develops with age, like voice cracking but deadlier?

And what about Cyclops from X-Men? His optic blasts are so wild he needs a visor just to walk around because the energy spills out of his entire eye socket. Superman, on the other hand, doesn’t even blink when using heat vision. No glasses, no focusing lenses, nothing. Does that mean Kryptonians just have built-in targeting systems?

Then there’s Superman & Lois, where Clark’s eyes start glowing way before the beams actually fire. But if you go back to Super Friends, there’s no warm-up, just instant pew-pew. So is that pre-glow a canon energy charge or just a CW-style dramatic pause?

Now look at Homelander from The Boys. His heat vision oozes red energy out of his entire eyeballs and even from under his eyelids, like his face is about to melt. Superman’s beams, by contrast, are clean and precise with no mess and no overflow. Is that raw power versus control, or just different takes on what heat vision should look like?

And finally, Supergirl. In the CW show, her whole iris lights up like a neon sign before she fires, but in the comics, she zaps people instantly without any flashy effects. So is the glowing iris a female Kryptonian thing or just added flair to make things look cooler on screen?