Half of all American adults don’t have the 20/20 vision physicians consider optimal. They are nearsighted, farsighted, or have an irregular corneal curve known as astigmatism.
A study revealed that such common eye-focus problems – collectively known as “refractive errors” – affect young, middle-aged and older adults of all races. Corrective care for such problems amounts to an estimated $3.8 billion to $7.2 billion annually, the researchers said.
Is there an answer?