I too have noticed severe vision changes since I became a long hauler. Prior to becoming ill with Covid in late 2020, I didn’t have the need to wear glasses. I sometimes used over-the-counter weak readers, but didn’t really need them and oftentimes forgot to wear them. After Covid I started to have bouts of blurry vision, and my vision itself declined significantly. My prescription for reading is now 3.5 and my far vision is 2.0. I have no doubt that my change in vision is connected to Long Covid. I continue to have problems with blurry vision along with the many other health problems that others suffer and suspect that my vision will continue to decline. I checked with my ophthalmologist and she said that my eyes are healthy and suggested I talk to my neurologist; he felt it was coincidental and connected to natural aging.