WHAT IS PRESBYOPIA?
Presbyopia is a natural, inevitable part of the aging process and the most common cause of vision impairment. Loss of near vision typically begins when adults reach their mid-40s, and the condition is almost universal by age 50.⁶ The vast majority of people will experience presbyopia in their lifetime. It is estimated that presbyopia will affect 2.1 billion people globally in 2020, with approximately 123 million residing in the US.⁷
CAUSES OF PRESBYOPIA
The clear lens in the eye focuses light onto the retina. In younger people, the lens is soft and flexible, and changes shape easily, which is what allows us to shift focus between near and distant objects. As we age, the lens becomes more rigid and isn’t able to change shape as easily, making it more difficult to focus up close.
IMPACT ON DAILY ACTIVITIES
Typically, the first symptom of presbyopia is the tendency to hold reading materials, such as a restaurant menu or a medication label, farther away. Over time, it gets harder to see objects at an intermediate distance, like a computer screen or labels on a store shelf. Reading glasses or bifocals are the most common correction for presbyopia. Without using some type of correction, people may experience blurred vision, eye strain, or headaches.
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