It usually begins at around 40 years of age. By the age of 45 years, most people will need reading glasses. As we grow older, our vision function may degradate, it's common for us to require reading glasses.
Wearing reading glasses can minimize potential issues. And there is no limited age condition to wear them,once your eyes get less flexible, your close vision gets worse. It's a condition called presbyopia, and it may make you wonder if you need reading glasses.
In my opinion, the need for reading glasses results for presbyopia. It is an age related eyesight condition which is long-sightedness caused by loss of elasticity of the lens of the eye, occurring typically starting at around the age of 40.