It is a common misconception that we need both eyes to understand depth or to have depth perception. How can a person with sight in only one eye continue to have depth perception?

Are you able to fuse the stereograms? Can you describe the technique you use?

Check out the links on the "Stereo Viewers" page. Do you have a ViewMaster? Have you played with one? How does a virtual reality headset like the Meta Quest compare to a ViewMaster? How are they different from the earliest stereo picture viewers? Are they different from those early stereo picture viewers?