why do we have two eyes and not just one
Answers
Having two eyes provides us with a wider field of view. When both our eyes are open, we get a horizontal field of view of about 180 degrees. Our eyes send these two slightly different images to the brain. The brain blends or combines both the images to make a three dimensional image of the object.
The problem of parallax error in vision is reduced a lot because of this double eye vision. It also enhances our depth perception giving us a very good evolutionary advantage. Also, our ability to detect faint objects is more distinct. Thanks to our 'two' eyes, humans are able to enjoy stereoscopic vision.
Having two eyes provides us with a wider field of view. When both our eyes are open, we get a horizontal field of view of about 180 degrees. Our eyes send these two slightly different images to the brain. The brain blends or combines both the images to make a three dimensional image of the object.
The problem of parallax error in vision is reduced a lot because of this double eye vision. It also enhances our depth perception giving us a very good evolutionary advantage. Also, our ability to detect faint objects is more distinct. Thanks to our 'two' eyes, humans are able to enjoy stereoscopic vision.