C.8.25 Ophthalmic Refractive Measurements Modules
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### C.8.25 Ophthalmic Refractive Measurements Modules

#### C.8.25.1 Lensometry Measurements Series Module

The Lensometry Measurements IODs use the General Series module described in Section C.7.3.1, specialized by the Lensometry Measurements Series Module, to describe the DICOM Series Entity described in Section A.1.2.3, and to define what constitutes a Series for the context of Ophthalmic device.

Table C.8.25.1-1 specifies the Attributes that identify and describe general information about the Lensometry Measurements Series.

Table C.8.25.1-1. Lensometry Measurements Series Module Attributes

Attribute Name | Tag | Type | Attribute Description
--- | --- | --- | ---
Modality | (0008,0060) | 1 | Type of equipment that originally acquired the data used to create the images in this Series. Enumerated Values: LEN See Section C.7.3.1.1.1 for further explanation.
Referenced Performed Procedure Step Sequence | (0008,1111) | 1C | Uniquely identifies the Performed Procedure Step SOP Instance to which the Series is related. Only a single Item shall be included in this sequence. Required if a Performed Procedure Step SOP Class was involved in the creation of this Series.
>Include Table 10-11 “SOP Instance Reference Macro Attributes” |

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