“Adults in their early to mid-forties often start noticing difficulty seeing things up close, like when reading or using digital devices,” says Reed. “This normal, age-related change in the eye’s focusing ability is called presbyopia and tends to progress over time. To manage it, many people turn to reading glasses or other forms of near vision correction.”

Goel adds, “Most people begin to notice changes to their vision around the age of 40. That’s the age when the clear natural lens of your eye becomes less flexible, which leads to difficulty focusing well on near objects.”

According to Reed, some signs of presbyopia include: