Table C.8.26.5-1 defines the Attributes used to interpret the test results of a patient’s visual field test.

Table C.8.26.5-1VISUAL FIELD STATIC PERIMETRY TEST RESULTS MODULE ATTRIBUTES

Attribute Name | Tag | Type | Attribute Description |

Visual Field Mean Sensitivity | (0024,0070) | 1C | Average sensitivity of the test points of the visual field, in dB. Required if Content Item Modifier Sequence (0040,0441) within the Performed Protocol Code Sequence (0040,0260) contains an item with the value (R-408C3, SRT, “Diagnostic”). May be present otherwise. |

Visual Field Test Normals Flag | (0024,0063) | 1 | Whether normals exist for this patient’s results. Enumerated Values: YES NO |

Results Normals Sequence | (0024,0064) | 1C | Information that represents the statistically normal results for patients from a referenced data base. Only a single Item shall be included in this sequence. Required if Visual Field Test Normals Flag (0024,0063) is YES. |

> Include ‘Data Set Identification Macro’ Table 10-22 | |||

>Global Deviation from Normal | (0024,0066) | 1 | Weighted average deviation from the age corrected normal field, in dB. |

>Global Deviation Probability Normals Flag | (0024,0059) | 1 | Whether normals exist for the global deviation probability. Enumerated Values: YES NO |

>Global Deviation Probability Sequence | (0024,0083) | 1C | Probability value and software algorithm used to provide the normality for the global deviation. Only a single Item shall be included in this sequence. Required if Global Deviation Probability Normals Flag (0024,0059) is YES. |

>>Global Deviation Probability | (0024,0071) | 1 | The percentile of the Global Deviation from Normal (0024,0066) value within the normal population, in percent.0024 |

>> Include ‘Algorithm Identification Macro Table’ 10-19 | |||

>Localized Deviation from Normal | (0024,0068) | 1 | Weighted square root of loss variance, in dB. |

>Local Deviation Probability Normals Flag | (0024,0072) | 1 | Whether normals exist for the local deviation probability. Enumerated Values: YES NO |

>Localized Deviation Probability Sequence | (0024,0085) | 1C | Probability value and software algorithm used to provide the normality for the local deviation. Only a single Item shall be included in this sequence. Required if Local Deviation Probability Normals Flag (0024,0072) is YES.. |

>>Localized Deviation Probability | (0024,0073) | 1 | The0024 percentile of the Localized Deviation from Normal (0024,0068) value within the normal population, in percent.0024 |

>> Include ‘Algorithm Identification Macro’ Table 10-19 | |||

Short Term Fluctuation Calculated | (0024,0074) | 1 | Whether the short term fluctuation was calculated. Enumerated Values: YES NO |

Short Term Fluctuation | (0024,0075) | 1C | Average deviation of sensitivity for the repeated test locations, in dB. This is used to determine the consistency of the patient’s responses. Required if Short Term Fluctuation Calculated (0024,0074) is YES. |

Short Term Fluctuation Probability Calculated | (0024,0076) | 1 | Whether the short term fluctuation probability was calculated. Enumerated Values: YES NO |

Short Term Fluctuation Probability | (0024,0077) | 1C | The percentile of the Short Term Fluctuation (0024,0075) value within the normal population, in percent. Required if Short Term Fluctuation Probability Calculated (0024,0076) is YES. |

Corrected Localized Deviation From Normal Calculated | (0024,0078) | 1 | Whether the corrected localized deviation from normal was calculated. Enumerated Values: YES NO |

Corrected Localized Deviation From Normal | (0024,0079) | 1C | Weighted square root of loss variance corrected for short term fluctuation, in dB. Required if Corrected Localized Deviation From Normal Calculated (0024,0078) is YES. |

Corrected Localized Deviation From Normal Probability Calculated | (0024,0080) | 1 | Whether the corrected localized deviation from Normal probability was calculated. Enumerated Values: YES NO |

Corrected Localized Deviation From Normal Probability | (0024,0081) | 1C | The percentile of the Corrected Localized Deviation From Normal (0024,0079) value within the normal population, in percent. Required if Corrected Localized Deviation From Normal Probability Calculated (0024,0080) is YES. |

Visual Field Global Results Index Sequence | (0024,0320) | 3 | Information about various visual field indexes related to test results. One or more Items are permitted in this sequence. |

>Include ‘Ophthalmic Visual Field Global Index Macro’ C.8.26.3-2 |