What is presbyopia?
As you get older, you may notice you're having difficulty reading, especially in low lighting. You’re out to dinner and you need to push the menu away to see it properly. Or you’re reading a book in a dim room and squinting to get through it. This is called presbyopia, a common condition for people over the age of 40 where the eye has trouble focusing on near objects.
Traditionally, people wore bifocals to correct presbyopia. However, the abrupt break from distance to near-field vision, called “image jump,” is jarring to the wearer. Plus, the visible bifocal line can age your appearance.