If you have vision insurance, you probably have noticed that your plan covers “refraction.”
Refraction is a test that optometrists and ophthalmologists use to measure a person’s refractive error.
Other Methods of Refraction
Several methods may be used to measure refraction or the refractive error.
Zero Creatives / Getty Images
National Eye Institute NIH.Fact sheet: Refractive errors.
2013;37 Suppl 1:205-8.
2019;12(2):7483. doi:10.1016/j.optom.2018.09.001
