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      "value": "openEHR-EHR-OBSERVATION.visual_acuity.v0"
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  "name": "Visualacuitytestresult",
  "title": "Visual acuity test result",
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        "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Notation.US_Snellen.value",
        "short": "US Snellen",
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        "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Notation.Decimal_Snellen",
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        "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Notation.Decimal_Snellen.value",
        "short": "Decimal Snellen",
        "definition": "The distance test result,recorded as Sn ellen visual acuity expressed as a decimal ratio, where 1.0 is regarded as normal.",
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        "id": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Notation.logMar",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Notation.logMar",
        "short": "logMar",
        "definition": "The test result, recorded as logMar visual acuity, where a value of 0 is regarded as normal.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Notation.logMar",
          "min": 0,
          "max": "1"
        }
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Notation.logMar.value",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Notation.logMar.value",
        "short": "logMar",
        "definition": "The test result, recorded as logMar visual acuity, where a value of 0 is regarded as normal.",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Notation.logMar.value",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "Quantity"
          }
        ],
        "mustSupport": true,
        "isModifier": false,
        "isSummary": true
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Notation.Low_Vision_Score",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Notation.Low_Vision_Score",
        "short": "Low Vision Score",
        "definition": "Graded scale used when patient has low levels of visual acuity.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Notation.Low_Vision_Score",
          "min": 0,
          "max": "1"
        }
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Notation.Low_Vision_Score.value",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Notation.Low_Vision_Score.value",
        "short": "Low Vision Score",
        "definition": "Graded scale used when patient has low levels of visual acuity.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Notation.Low_Vision_Score.value",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "mustSupport": false,
        "isModifier": false,
        "isSummary": true
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Letter_Termination_Adjustment",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Letter_Termination_Adjustment",
        "short": "Letter Termination Adjustment",
        "definition": "A line termination adjustment score applied to the visual acuity result.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Letter_Termination_Adjustment",
          "min": 0,
          "max": "1"
        }
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Letter_Termination_Adjustment.value",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Letter_Termination_Adjustment.value",
        "short": "Letter Termination Adjustment",
        "definition": "A line termination adjustment score applied to the visual acuity result.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Letter_Termination_Adjustment.value",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "Quantity"
          }
        ],
        "mustSupport": false,
        "isModifier": false,
        "isSummary": true
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Derived_Score",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Derived_Score",
        "short": "Derived Score",
        "definition": "Visual acuity expressed as an integer score which is calculated from one or more of the other result notation formats. The original notation should be captured using 'Derived Score Original Notation' format'.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Derived_Score",
          "min": 0,
          "max": "1"
        }
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Derived_Score.value",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Derived_Score.value",
        "short": "Derived Score",
        "definition": "Visual acuity expressed as an integer score which is calculated from one or more of the other result notation formats. The original notation should be captured using 'Derived Score Original Notation' format'.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Derived_Score.value",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "Quantity"
          }
        ],
        "mustSupport": false,
        "isModifier": false,
        "isSummary": true
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Interpretation",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Interpretation",
        "short": "Interpretation",
        "definition": "Clinical interpretation of all results for the test eye.",
        "min": 0,
        "max": "*",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Interpretation",
          "min": 0,
          "max": "*"
        }
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Interpretation.value",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Interpretation.value",
        "short": "Interpretation",
        "definition": "Clinical interpretation of all results for the test eye.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Interpretation.value",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "mustSupport": false,
        "isModifier": false,
        "isSummary": true
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.No_test_result",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.No_test_result",
        "short": "No test result",
        "definition": "No visual acuity test result is available for the test eye.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.No_test_result",
          "min": 0,
          "max": "1"
        }
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.No_test_result.value",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.No_test_result.value",
        "short": "No test result",
        "definition": "No visual acuity test result is available for the test eye.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.No_test_result.value",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "boolean"
          }
        ],
        "mustSupport": false,
        "isModifier": false,
        "isSummary": true
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Reason_for_no_test_result",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Reason_for_no_test_result",
        "short": "Reason for no test result",
        "definition": "Reason why no visual acuity test result is available for the test eye.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Reason_for_no_test_result",
          "min": 0,
          "max": "1"
        }
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Reason_for_no_test_result.value",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Reason_for_no_test_result.value",
        "short": "Reason for no test result",
        "definition": "Reason why no visual acuity test result is available for the test eye.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Result_details.Reason_for_no_test_result.value",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "mustSupport": false,
        "isModifier": false,
        "isSummary": true
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.data.Overall_Interpretation",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Overall_Interpretation",
        "short": "Overall Interpretation",
        "definition": "A term, commonly coded, expressing an overall interpretation of the visual acuity test.",
        "min": 0,
        "max": "*",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Overall_Interpretation",
          "min": 0,
          "max": "*"
        }
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.data.Overall_Interpretation.value",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Overall_Interpretation.value",
        "short": "Overall Interpretation",
        "definition": "A term, commonly coded, expressing an overall interpretation of the visual acuity test.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Overall_Interpretation.value",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "mustSupport": false,
        "isModifier": false,
        "isSummary": true
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.data.Comment",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Comment",
        "short": "Comment",
        "definition": "Any additional narrative comment about the visual acuity test.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Comment",
          "min": 0,
          "max": "1"
        }
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.data.Comment.value",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Comment.value",
        "short": "Comment",
        "definition": "Any additional narrative comment about the visual acuity test.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Comment.value",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "mustSupport": false,
        "isModifier": false,
        "isSummary": true
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.data.Test_not_done",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Test_not_done",
        "short": "Test not done",
        "definition": "Details to explicitly record that this test was not performed.",
        "min": 0,
        "max": "*",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.data.Test_not_done",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "BackboneElement"
          }
        ],
        "mustSupport": false,
        "isModifier": false,
        "isSummary": true
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.state",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.state",
        "short": "Tree",
        "definition": "@ internal @",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.state",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "BackboneElement"
          }
        ],
        "mustSupport": false,
        "isModifier": false,
        "isSummary": true
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.state.Confounding_Factors",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.state.Confounding_Factors",
        "short": "Confounding Factors",
        "definition": "Patient circumstances which affect interpretation of the result. Often termed 'reliability' in opthalmological documentation.",
        "min": 0,
        "max": "*",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.state.Confounding_Factors",
          "min": 0,
          "max": "*"
        }
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.state.Confounding_Factors.value",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.state.Confounding_Factors.value",
        "short": "Confounding Factors",
        "definition": "Patient circumstances which affect interpretation of the result. Often termed 'reliability' in opthalmological documentation.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.state.Confounding_Factors.value",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "mustSupport": false,
        "isModifier": false,
        "isSummary": true
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.state.Refractive_Correction",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.state.Refractive_Correction",
        "short": "Refractive Correction",
        "definition": "The specific type(s) of refractive correction applied when measuring visual acuity.",
        "min": 0,
        "max": "*",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.state.Refractive_Correction",
          "min": 0,
          "max": "*"
        }
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.state.Refractive_Correction.value",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.state.Refractive_Correction.value",
        "short": "Refractive Correction",
        "definition": "The specific type(s) of refractive correction applied when measuring visual acuity.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.state.Refractive_Correction.value",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "mustSupport": false,
        "isModifier": false,
        "isSummary": true
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.state.Refraction_Details",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.state.Refraction_Details",
        "short": "Refraction Details",
        "definition": "Details of the refraction applied to each eye.",
        "min": 0,
        "max": "2",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.state.Refraction_Details",
          "min": 0,
          "max": "2"
        },
        "type": [
          {
            "code": "BackboneElement"
          }
        ],
        "mustSupport": false,
        "isModifier": false,
        "isSummary": true
      },
      {
        "id": "Visual_acuity_test_result.Event_Series.Any_event.state.Pupillary_State",
        "path": "Visual_acuity_test_result.Event_Series.Any_event.state.Pupillary_State",
        "short": "Pupillary State",
        "definition": "Details of the state of the pupil on examination.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Visual_acuity_test_result.Event_Series.Any_event.state.Pupillary_State",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "BackboneElement"
          }
        ],
        "mustSupport": false,
        "isModifier": false,
        "isSummary": true
      }
    ]
  }
}