This value set includes codes based on the following rules:

• Include these codes as defined in http://dicom.nema.org/resources/ontology/DCM

  Code	Display	Definition
  111685	Autorefraction Visual Acuity	A patient's vision with the correction measured by an autorefractor in place.
  111686	Habitual Visual Acuity	A patient's vision with whichever vision correction the patient customarily wears.
  111687	Prescription Visual Acuity	A patient's vision with the final spectacle prescription in place.

• Include these codes as defined in http://snomed.info/sct

  Code	Display
  419775003	Best Corrected Visual Acuity
  419475002	Pinhole Visual Acuity
  425141002	Brightness Acuity Testing Visual Acuity
  424622008	Potential Acuity Meter Visual Acuity
  420050001	Uncorrected Visual Acuity