Glossary term
Refractive Error
Reference only — not medical advice. See disclaimer.
A common vision condition in which the shape of the eye prevents light from focusing precisely on the retina, resulting in blurred vision, and encompassing myopia (short-sightedness), hyperopia (long-sightedness), astigmatism, and presbyopia. Refractive errors are the primary indication for laser eye surgery procedures such as LASIK, PRK, and SMILE.