Aperture sights in the game often obscure the view too much.
But in real, it doesn’t obscure that much.
Objects close to the eye become blurred,
That part may provide a certain part of the field of view.
However, the level of visibility provided will be minimal.
But that’s not all. For right-handed shooting we have a left eye.
Binocular shooting is a shooting technique that is used in real, and in this case, it perfectly solves the problem of Aperture sights obscuring the view.
Unfortunately, I know that there is no game that implements binocular shooting.
But we can mimic it to some extent by blurring the near-eye sight and making it somewhat transparent.