Is it normal to be able to change my vision from clear to blurry on demand?

Question

I think I worded it badly but I’ll try again here, I can control when my eyes show a clear image and a blurry image, is it normal or harmful? I’ve searched a few places but haven’t found a solid answer. I don’t know if it is from too much time looking at screens or just my eye getting older.

In: 2

Answer 1

I’m not a doctor or anything, but I’ve always been able to “relax” (or flex?) the focus of my eyes at will. I’m pretty sure it’s normal.