No narrative is provided for definitional resources. A human-readable rendering can be found in the implementation guide(s) where this resource is used.
 <status value="draft" /> <publisher value="Nictiz" /> <contact> <name value="Nictiz" /> <telecom> <system value="url" /> <value value="https://www.nictiz.nl" /> <use value="work" /> </telecom> </contact> <description value="The 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 diopters), the cylindrical power (in diopters), the axis direction (in degrees) for any cylindrical correction, the prism (in prism diopters) and any additional power of the reading area (in diopters), the so-called reading addition." /> <purpose value="A derived profile from [zib-Refraction](http://nictiz.nl/fhir/StructureDefinition/zib-Refraction) to provide a version better suited for implementation purposes. This profile augments the base profile with elements found in the various use cases that have adopted the zib." /> <copyright value="Copyright and related rights waived via CC0, https://creativecommons.org/publicdomain/zero/1.0/. This does not apply to information from third parties, for example a medical terminology system. The implementer alone is responsible for identifying and obtaining any necessary licenses or authorizations to utilize third party IP in connection with the specification or otherwise." /> <fhirVersion value="4.0.1" /> <mapping> <identity value="zib-refraction-v1.0-2020EN" /> <uri value="https://zibs.nl/wiki/Refraction-v1.0(2020EN)" /> <name value="zib Refraction-v1.0(2020EN)" /> </mapping> <kind value="resource" /> <abstract value="false" /> <type value="Observation" /> <baseDefinition value="http://nictiz.nl/fhir/StructureDefinition/zib-Refraction" /> <derivation value="constraint" /> <differential> <element id="Observation"> <path value="Observation" /> <alias value="nl-core-Refraction" /> </element> <element id="Observation.subject"> <path value="Observation.subject" /> <type> <code value="Reference" /> <targetProfile value="http://hl7.org/fhir/StructureDefinition/Patient" /> <targetProfile value="http://hl7.org/fhir/StructureDefinition/Group" /> <targetProfile value="http://hl7.org/fhir/StructureDefinition/Device" /> <targetProfile value="http://hl7.org/fhir/StructureDefinition/Location" /> <targetProfile value="http://nictiz.nl/fhir/StructureDefinition/nl-core-Patient" /> </type> </element> <element id="Observation.bodySite"> <path value="Observation.bodySite" /> <type> <code value="CodeableConcept" /> <profile value="http://nictiz.nl/fhir/StructureDefinition/nl-core-AnatomicalLocation" /> </type> </element> </differential> </StructureDefinition>