Eli5: How does temporary blindness/ deafness heal back?

Question

I always thought that once those sensitive sensors are damaged, you lose them forever! How do they return to their previous state?

In: 1

Answer 1

a lot of times in your body things are caused by like inflammation. so if you have head trauma and something is inflamed and pushing on something in your brain or around your optic nerves then you could temporarily lose eyesight but once the inflammation goes down and proper bloodflow is is restored your nerves can again function normally