Presbyopia refers to the age-related loss of ability to focus on nearby objects, which affects almost everyone after the age of 40. It occurs as the natural aging process causes the lens inside the eye to gradually stiffen over time, limiting its ability to change shape and focus on objects at varying distances. Some of the major treatment options for presbyopia include reading glasse... https://www.zupyak.com/p/4484655/t/the-global-presbyopia-treatment-market-is-anticipated-to-witness-high-growth-owing-to-rising-presbyopia-patient-population