Note: This is our first guest post. It was written by Dr. Dan L. Fortenbacher, an optometrist who practices in Michigan. Not only is he an outstanding vision therapist and optometric leader, he is a visionary when it comes to social media. Enjoy! – Dr. B.
The ability to see in stereo. What does that mean? Basically, stereo-vision is the ability to see depth in our visual space. That is, the ability to tell that space exists between objects in the environment. In essence stereo vision is your 3-D vision. It is the ability to judge depth because you actually see depth. This is accomplished through normal binocular (two-eyed) vision.
Most of us relate to this as we see 3-D pictures or 3-D movies. However, it is much more than that…stereopsis provides a quality of vision that is much like color vision. To those who are color blind, the ability to “see” exists, but the color deficient individual lacks a quality of vision that can only be described as a phenomenon of see the world with a quality of color perception. The world of color can not be easily put into words. The same is true with stereo vision. Until you see it you don’t know what you are missing. But, to be sure the stereo-blind are missing a lot! Continue reading