I read this tweet thread here a couple of years ago, and it was striking how much of our vision is done in the brain rather than the optics, similarly to modern

I read this tweet thread here a couple of years ago, and it was striking how much of our vision is done in the brain rather than the optics, similarly to modern digital cameras. Since then I was diagnosed with amblyopia - a "lazy eye", which is not misaligned in my case but is simply not recognized properly by the brain. It's corrected easily when you are young, but not in adulthood. Apparently brain plasticity is the problem. The resulting double vision (diplopia) is quite annoying and sometimes debilitating when you are tired - and there is no surgery to fix your brain's learned behaviour. It's pretty common - get your kids checked. My parents had no idea, and I always thought being "right eyed" was normal. Apparently there are some promising new treatments for adults using VR headsets.