description: '**Concept**\r\nThe refraction measurement is a measurement with which the refractive error of the eye is determined. During the refraction measurement, the necessary correction is established: the spherical power (in diopter), the cylindrical power (in diopter), the axis direction(in degrees) for any cylindrical correction, the prism (in diopter)and any additional power of the reading area (in diopter), the so-called reading addition\r\n**Purpose**\r\nThe purpose of a refraction measurement is to determine the correction (through glasses or lenses) with which the patient can see optimally.\r\n**Example Instances**\r\n\r\n**Patient Population**\r\nAdults and children from the age that they can interpret a picture chart.'
package_name: healthdata.be.r4.cbb
derivation: specialization
name: HdBeRefraction
abstract: true
type: https://fhir.healthdata.be/StructureDefinition/LogicalModel/refraction
elements:
  refraction_measurement_method:
    short: RefractionMeasurementMethod
    _definition:
      extension:
      - url: http://hl7.org/fhir/StructureDefinition/translation
        extension:
        - {url: lang, valueCode: nl-NL}
        - {url: content, valueMarkdown: De gebruikte methodiek om de refractie te meten}
    type: CodeableConcept
    _short:
      extension:
      - url: http://hl7.org/fhir/StructureDefinition/translation
        extension:
        - {url: lang, valueCode: nl-NL}
        - {url: content, valueMarkdown: RefractieMeetMethode}
    binding: {strength: extensible, valueSet: 'https://fhir.healthdata.be/ValueSet/RefractieMeetMethode'}
    base: {max: '1', min: 0, path: refraction.refraction_measurement_method}
    index: 0
  refraction_date_time:
    short: RefractionDateTime
    _definition:
      extension:
      - url: http://hl7.org/fhir/StructureDefinition/translation
        extension:
        - {url: lang, valueCode: nl-NL}
        - {url: content, valueMarkdown: De datum en tijd waarop de refractie is gemeten.}
    type: dateTime
    _short:
      extension:
      - url: http://hl7.org/fhir/StructureDefinition/translation
        extension:
        - {url: lang, valueCode: nl-NL}
        - {url: content, valueMarkdown: RefractieDatumTijd}
    base: {max: '1', min: 0, path: refraction.refraction_date_time}
    index: 1
  cilindrical_refraction:
    short: CilindricalRefraction
    _definition:
      extension:
      - url: http://hl7.org/fhir/StructureDefinition/translation
        extension:
        - {url: lang, valueCode: nl-NL}
        - {url: content, valueMarkdown: Container van het concept CilindrischeRefractie. Deze container bevat alle gegevenselementen van het concept CilindrischeRefractie.}
    type: BackboneElement
    _short:
      extension:
      - url: http://hl7.org/fhir/StructureDefinition/translation
        extension:
        - {url: lang, valueCode: nl-NL}
        - {url: content, valueMarkdown: CilindrischeRefractie}
    base: {max: '1', min: 0, path: refraction.cilindrical_refraction}
    index: 2
    elements:
      cylindrical_refraction_value:
        short: CylindricalRefractionValue
        _definition:
          extension:
          - url: http://hl7.org/fhir/StructureDefinition/translation
            extension:
            - {url: lang, valueCode: nl-NL}
            - {url: content, valueMarkdown: 'Dit is de sterkte van de cylinder die nodig is om de cylindrische afwijking (astigmatisme) te corrigeren, uitgedrukt in dioptrieën, oplopend per 0.25D. Bij een cilindrische refractiewaarde dient ook de as van de cilinder opgegeven te worden.'}
        type: Quantity
        _short:
          extension:
          - url: http://hl7.org/fhir/StructureDefinition/translation
            extension:
            - {url: lang, valueCode: nl-NL}
            - {url: content, valueMarkdown: CilindrischeRefractieWaarde}
        base: {max: '1', min: 1, path: refraction.cilindrical_refraction.cylindrical_refraction_value}
        index: 3
      cilindric_refraction_axis:
        short: CilindricRefractionAxis
        _definition:
          extension:
          - url: http://hl7.org/fhir/StructureDefinition/translation
            extension:
            - {url: lang, valueCode: nl-NL}
            - {url: content, valueMarkdown: De asrichting van de cilindrische refractiewaarde uitgedrukt in graden.}
        type: Quantity
        _short:
          extension:
          - url: http://hl7.org/fhir/StructureDefinition/translation
            extension:
            - {url: lang, valueCode: nl-NL}
            - {url: content, valueMarkdown: CilindrischeRefractieAs}
        base: {max: '1', min: 1, path: refraction.cilindrical_refraction.cilindric_refraction_axis}
        index: 4
    required: [cilindric_refraction_axis, cylindrical_refraction_value]
  prisma:
    short: Prisma
    _definition:
      extension:
      - url: http://hl7.org/fhir/StructureDefinition/translation
        extension:
        - {url: lang, valueCode: nl-NL}
        - {url: content, valueMarkdown: Container van het concept Prisma. Deze container bevat alle gegevenselementen van de container Prisma.}
    type: BackboneElement
    _short:
      extension:
      - url: http://hl7.org/fhir/StructureDefinition/translation
        extension:
        - {url: lang, valueCode: nl-NL}
        - {url: content, valueMarkdown: Prisma}
    base: {max: '1', min: 0, path: refraction.prisma}
    index: 5
    elements:
      prisma_value:
        short: PrismaValue
        _definition:
          extension:
          - url: http://hl7.org/fhir/StructureDefinition/translation
            extension:
            - {url: lang, valueCode: nl-NL}
            - {url: content, valueMarkdown: 'De sterkte van de prisma, uitgedrukt in dioptrieën.'}
        type: Quantity
        _short:
          extension:
          - url: http://hl7.org/fhir/StructureDefinition/translation
            extension:
            - {url: lang, valueCode: nl-NL}
            - {url: content, valueMarkdown: PrismaWaarde}
        base: {max: '1', min: 1, path: refraction.prisma.prisma_value}
        index: 6
      prisma_base:
        short: PrismaBase
        _definition:
          extension:
          - url: http://hl7.org/fhir/StructureDefinition/translation
            extension:
            - {url: lang, valueCode: nl-NL}
            - {url: content, valueMarkdown: 'De basis van de prisma, uitgedrukt in graden.'}
        type: Quantity
        _short:
          extension:
          - url: http://hl7.org/fhir/StructureDefinition/translation
            extension:
            - {url: lang, valueCode: nl-NL}
            - {url: content, valueMarkdown: PrismaBasis}
        base: {max: '1', min: 1, path: refraction.prisma.prisma_base}
        index: 7
    required: [prisma_value, prisma_base]
  sferic_refraction:
    short: SfericRefraction
    _definition:
      extension:
      - url: http://hl7.org/fhir/StructureDefinition/translation
        extension:
        - {url: lang, valueCode: nl-NL}
        - {url: content, valueMarkdown: Container van het concept SferischeRefractie. Deze container bevat alle gegevenselementen van het concept SferischeRefractie.}
    type: BackboneElement
    _short:
      extension:
      - url: http://hl7.org/fhir/StructureDefinition/translation
        extension:
        - {url: lang, valueCode: nl-NL}
        - {url: content, valueMarkdown: SferischeRefractie}
    base: {max: '1', min: 0, path: refraction.sferic_refraction}
    index: 8
    elements:
      sferic_refraction_value:
        short: SfericRefractionValue
        _definition:
          extension:
          - url: http://hl7.org/fhir/StructureDefinition/translation
            extension:
            - {url: lang, valueCode: nl-NL}
            - {url: content, valueMarkdown: 'De sferische brilsterkte die nodig is om bijziendheid (myopie) of verziendheid (hypermetropie) te corrigeren, uitgedrukt in dioptrieën, oplopend per 0.25D.'}
        type: Quantity
        _short:
          extension:
          - url: http://hl7.org/fhir/StructureDefinition/translation
            extension:
            - {url: lang, valueCode: nl-NL}
            - {url: content, valueMarkdown: SferischeRefractieWaarde}
        base: {max: '1', min: 1, path: refraction.sferic_refraction.sferic_refraction_value}
        index: 9
      sferical_equivalent:
        short: SfericalEquivalent
        _definition:
          extension:
          - url: http://hl7.org/fhir/StructureDefinition/translation
            extension:
            - {url: lang, valueCode: nl-NL}
            - {url: content, valueMarkdown: 'De sferische sterkte en halve cylindrische sterkte bij elkaar opgeteld. Wordt uitgedrukt in dioptrieën, oplopend per 0.25D. Door sommige apparatuur wordt de sferische equivalent automatisch berekend.'}
        type: Quantity
        _short:
          extension:
          - url: http://hl7.org/fhir/StructureDefinition/translation
            extension:
            - {url: lang, valueCode: nl-NL}
            - {url: content, valueMarkdown: SferischEquivalent}
        base: {max: '1', min: 0, path: refraction.sferic_refraction.sferical_equivalent}
        index: 10
    required: [sferic_refraction_value]
  read_addition:
    short: ReadAddition
    _definition:
      extension:
      - url: http://hl7.org/fhir/StructureDefinition/translation
        extension:
        - {url: lang, valueCode: nl-NL}
        - {url: content, valueMarkdown: 'Een toeslag die wordt opgeteld bij de uitkomst van de refractie waarde om de sterkte van de leesbril te bepalen, uitgedrukt in dioptrieën.'}
    type: Quantity
    _short:
      extension:
      - url: http://hl7.org/fhir/StructureDefinition/translation
        extension:
        - {url: lang, valueCode: nl-NL}
        - {url: content, valueMarkdown: LeesAdditie}
    base: {max: '1', min: 0, path: refraction.read_addition}
    index: 11
  anatomical_location:
    short: AnatomicalLocation
    _definition:
      extension:
      - url: http://hl7.org/fhir/StructureDefinition/translation
        extension:
        - {url: lang, valueCode: nl-NL}
        - {url: content, valueMarkdown: De zijdigheid van het oog waarvan de refractie is gemeten.}
    type: AnatomicalLocation
    _short:
      extension:
      - url: http://hl7.org/fhir/StructureDefinition/translation
        extension:
        - {url: lang, valueCode: nl-NL}
        - {url: content, valueMarkdown: AnatomischeLocatie}
    index: 12
package_version: 0.5.0-alpha
class: logical
kind: logical
url: https://fhir.healthdata.be/StructureDefinition/LogicalModel/HdBe-Refraction
base: http://hl7.org/fhir/StructureDefinition/Element
version: null