Outer Retinal Tubulation Update

Outer Retinal Tubulation Update Rachel T. Samouha, OD Outer retinal tubulation (ORT) is a structure identified on spectral-domain optical coherence tomography (SD-OCT) in patients with degenerative retinal disorders.  It is characterized by round or ovoid hyporeflective tubular spaces surrounded by hyperreflective borders found in the retinal outer nuclear layer on the B-scan of SD-OCT.1 ORTs