Similar experience, though kind of in reverse. I was born with a congenital cataract in my left eye, and my brain learned to either correct or tune out the pict

Similar experience, though kind of in reverse. I was born with a congenital cataract in my left eye, and my brain learned to either correct or tune out the picture from that eye. When I closed my right eye, the left picture was significantly darker and had a large black spot near the center, but with both eyes open I had very good (I guess? Hard to compare when you've known nothing else) vision. I got the bright idea to have cataract surgery in my late 20's despite the cataract never really bothering me. While the sight in my left eye is now objectively "better", the surgery actually made my binocular vision worse because my brain isn't used to the new type and degree of aberration, and so doesn't yet know how to correct for it. I'm a few years out from the surgery and it's definitely better, but I kind of wish I'd left well enough alone.