I had something similar happen to me years ago, but not with Ivermectin. I had Lasik (on both eyes) about a month before and it healed perfectly - 20/10 vision. I was on a business trip and working nights doing a pen-test (for a big commodities exchange) and wasn't getting nearly enough sleep. By day 3 my vision just started going dark and I had trouble even reading words. I panicked and went to a local eye doctor to make sure nothing was wrong with the Lasik, and as it turned out everything was fine. He told me to go back to the hotel and sleep for as long as I could and it would be better. It seems my body was exhausted and since I had that procedure in the last 30 days my brain just wanted me to sleep. It worked - I slept around 13-14 hours and could see perfectly again. Unfortunately it meant I had missed the only NFL game I ever had tickets to (Bears/Packers). My uncle-in-law (is that a thing?) got me a ticket from a contact of his (he had a pretty big local Chicago business), and I couldn't go. That was back when I liked NFL and the Bears were my team. Oh well.
The point in this is the body can do really strange stuff and it isn't always because of what you may think. Had I slept normally I would've been ok. Unfortunately I thought the Lasik messed my eyes up - but it was just exhaustion. The Lasik didn't cause it but it likely assisted.
I had something similar happen to me years ago, but not with Ivermectin. I had Lasik (on both eyes) about a month before and it healed perfectly - 20/10 vision. I was on a business trip and working nights doing a pen-test (for a big commodities exchange) and wasn't getting nearly enough sleep. By day 3 my vision just started going dark and I had trouble even reading words. I panicked and went to a local eye doctor to make sure nothing was wrong with the Lasik, and as it turned out everything was fine. He told me to go back to the hotel and sleep for as long as I could and it would be better. It seems my body was exhausted and since I had that procedure in the last 30 days my brain just wanted me to sleep. It worked - I slept around 13-14 hours and could see perfectly again. Unfortunately it meant I had missed the only NFL game I ever had tickets to (Bears/Packers). My uncle-in-law (is that a thing?) got me a ticket from a contact of his (he had a pretty big local Chicago business), and I couldn't go. That was back when I liked NFL and the Bears were my team. Oh well.
The point in this is the body can do really strange stuff and it isn't always because of what you may think. Had I slept normally I would've been ok. Unfortunately I thought the Lasik messed my eyes up - but it was just exhaustion. The Lasik didn't cause it but it likely assisted.