IAMA 32 y/o who grew up stereo blind. Two years ago I had surgery that enabled me to see 3D for the first time in my life. AMA
My folks thought I had a lazy eye when I was a kid. I too had to wear the eye patch of shame. (It did come in handy as a respirator when carving pumpkins...) I knew that I didn't see like everyone else, but I never knew that there was a possible treatment for it. My vision basically worked by trading dominant eyes depending on which direction I was looking. If I looked to the far left, my right eye would take over and the left one would kind of go into a standby mode where the whole field of vision it took in was like peripheral vision. If I looked to the far right, my eyes would seamlessly trade rolls. I could voluntarily switch which one was dominant, but they couldn't work at the same time. I had what is known as esotropia. I had very mildly crossed eyes. The surgery fixed everything overnight.