Sunday, 6 August 2017

vision - What is the field of view for the human eyes?


I'd like to know how much a person can see regarding the angles.


If it is a rectangle, I'd like to know it's height and width.


But if is another shape, I'd like to know which kind of shape and the angles.


I suppose that we can see something like this and if this is true I am curious about 4 dimensions:




  • "vertical" angle for both eyes

  • "horizontal" angle for both eyes

  • "vertical" angle for an eye

  • "horizontal" angle for an eye


enter image description here


It would be also nice if there will be some "areas" with percentages. I mean, something related to "central" vs "peripheral" view, because we see better something that is in front of us than something that is near us.



Answer



The general shape of the field of view has been answered in the related question "If human eyes watch an area, what's the shape of its capturing shape? Rectangular? Half spherical?"


Regarding the central view: yes, foveal view has a higher acuity than peripheral view.



Regarding the numerical dimensions of the monocular and binocular field of view: Monocular field of view (measured from central fixation) is 160 deg (width w) x 175 deg (height h). The total binocular field of view is 200 deg (w) x 135 deg (h).


The region of binocular overlap is 120 deg (w) x 135 deg (h) (WebVision). The binocular foveal high-acuity part (central view) is about 6 degrees (5-15 degrees).


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