Soon after, the ophthalmology working group of DICOM began developing a series of standards to represent findings from our most common ocular imaging and testing devices. 4 DICOM Standards Committee Digital Imaging and Communications in Medicine (DICOM) Supplement 91: Ophthalmic Photography Image SOP Classes. As a relatively small specialty, ophthalmology has only slowly developed standards that can be used to represent our exam findings and our in-office testing results.