optomap® Recognizing Pathology
This material is designed as a searchable reference resource to support clinical decision-making. The information contained here should be used as general guidance when viewing optomap and OCT images from Optos devices. The differential diagnosis should be made under the direction of the responsible physician. These images were taken on the latest ultra-widefield optomap devices.
Intra-retinal Microvascular Abnormalities (IRMA)
Intraretinal microvascular abnormalities are shunt vessels and appear as abnormal branching or dilation of existing blood vessels (capillaries) within the retina that act to supply areas of non-perfusion in diabetic retinopathy. These vessels represent either new vessel growth within the retina or remodeling of pre-existing vessels through endothelial cell proliferation stimulated by hypoxia bordering areas of capillary nonperfusion.