Having 20/20 vision is nice. It’s the way your vision should be. Millions of people need corrective lenses to see 20/20 because of myopia. However, these individuals, as well as those who have natural 20/20 vision may find when they hit their early 40s that things that were once so crystal clear up close have begun to get fuzzy. This blurred vision may be more than a passing thing, it may be presbyopia.
Presbyopia is part of aging, and unavoidable for nearly everyone after they’ve reached 40. It’s the reason your grandparents all wear reading glasses, and it’s the reason your parents hold their books and magazines as far away from them as they can. Presbyopia is, for all intents and purposes, age-related farsightedness.
Why people develop presbyopia is not fully understood, and there are a couple theories. One is that the lens begins to become hard due to proteins. This makes the lens less flexible to focal changes. Another theory is that the ciliary muscle begins to weaken. This makes it harder for the lens curvature to steepen to see things near. A third, and newest, theory is that the lens continues to grow, and by age 40 it has grown so much that the ciliary muscle does not have enough space to contract and steepen the lens. However, this last theory is not held by many eye doctors right now.
If you are 40 or older and have noticed your near vision beginning to blur, find an experienced eye doctor in your area to test you for presbyopia today.