open sights vs scopes

I can relate to the vision thing.At 30 I had the eyes of an eagle.At 40 the vision started to fade.At 55 I had cataracts.Ive had both eyes fixed with artificial lens and my vision is now 20/20.I still have a bit if a problem for the first 5 feet,after that clear as a bell.It was wonderful to get my sight back as well as I have.I shoot with a scope now ,but can still shoot alright with iron sights.Im lazy now and love my scope.Its a 3x9x50 Nikon