Who is at risk for refractive errors?
Presbyopia affects most adults over age 35. Other refractive errors can affect both children and adults. Individuals that have parents with certain refractive errors may be more likely to get one or more refractive errors.

Blurred vision is the most common symptom of refractive errors. Other symptoms may include:

  • Double vision
  • Haziness
  • Glare or halos around bright lights
  • Squinting
  • Headaches
  • Eye strain

How are refractive errors diagnosed?
An eye care professional can diagnose refractive errors during a comprehensive dilated eye examination. People with a refractive error often visit their eye care professional with complaints of visual discomfort or blurred vision. However, some people don’t know they aren’t seeing as clearly as they could.