Presbyopia is an eye ailment in which your ability to focus quickly on close things gradually deteriorates. It's a result of becoming older. The natural lens inside your eye thickens and loses flexibility over time. Presbyopia is caused by a problem with the eye's lens, which is located below the iris (coloured area) and pupil. Light is bent (or refracted) by the eye's lens to focus it straight onto the retina, which is the light-sensitive tissue at the back of the eye. https://www.databridgemarketresearch.com/reports/global-presbyopia-market