DICOM PS3.3 2021b - Information Object Definitions

C.8.25.6.2 Prism Sequence Macro (Current)
Prev | C.8.25.6 General Ophthalmic Refractive Macros | Next

##### C.8.25.6.2 Prism Sequence Macro

Table C.8.25.6.2-1 describes the Attributes for the Prism Sequence Macro

Table C.8.25.6.2-1. Prism Sequence Macro Attributes

Attribute Name | Tag | Type | Attribute Description
--- | --- | --- | ---
Prism Sequence | (0046,0028) | 1C | A Sequence that specifies prism that is measured in a lens, or that is required to correct for a patient's ocular misalignment. Required if prism is measured in the lens or if this part of a refraction is done for a patient. Only a single Item shall be included in this Sequence. ### Note A prism is a wedge shaped lens that deviates light toward the base and shifts the apparent image toward its apex.
>Horizontal Prism Power | (0046,0030) | 1 | The power of a prism to bend light in the horizontal direction, in prism diopters.
>Horizontal Prism Base | (0046,0032) | 1 | Direction of the base of the measured prism -- either in (toward the nose), or out (away from the nose) Enumerated Values: IN OUT
>Vertical Prism Power | (0046,0034) | 1 | The power of a prism to bend light in the vertical direction, in prism diopters.
>Vertical Prism Base | (0046,0036) | 1 | Direction of the base of the measured prism -- either up, or down. Enumerated Values: UP DOWN

Prev | Up | Next
C.8.25.6 General Ophthalmic Refractive Macros | Home | C.8.25.7 General Ophthalmic Refractive Measurements Module

DICOM PS3.3 2021b - Information Object Definitions