Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

Why do most people over the age of 40 need reading glasses?

age glasses people Reading
0
Posted

Why do most people over the age of 40 need reading glasses?

0

In order to focus on objects up close, the lens inside the eye needs to change its shape to become fatter and bring the light rays into focus on the retina. As the eye ages, the lens becomes more brittle and less flexible. As such, the distance to which we can bring objects in and still keep them in focus drops off as the lens becomes more and more brittle and less and less able to change its shape with increasing age. Reading spectacles focus the light at the retina and make the image sharp again.

Related Questions

Thanksgiving questions

*Sadly, we had to bring back ads too. Hopefully more targeted.