{
  "package" : "hl7.fhir.r4.examples@4.0.1",
  "definition" : "A reflection-based device that projects a pattern of light onto the cornea and an image of the reflection of that pattern from the tear film is recorded in one video frame. Light patterns include the circular mire pattern (Placido disc) and spot matrix patterns. Sequential scanning of light spots reflected from the corneal surface is also used requiring multiple video frames for recording",
  "system" : "http://dicom.nema.org/resources/ontology/DCM",
  "property" : [ ],
  "codesystem" : "5f336dd4-db81-5653-939a-25648922f08e",
  "concept_id" : "9c6b4399-0ee9-5ea5-9a14-b1a89dc8d609",
  "ancestors" : {
    "111946" : 0
  },
  "id" : "67fa9f5f-c12f-4232-9f2b-c3b7107acab7",
  "code" : "111946",
  "display" : "Reflection-based corneal topographer",
  "version" : "01"
}