Case #60 – Does my Myopic Patient Have Glaucoma? – Page 7 of 22

Poor Segmentation on OCT

One of the difficulties clinicians can have with the OCT in highly myopic patients is poor segmentation of the OCT to measure the thickness of the RNFL. It is important to look at the tomograms (bottom three images of each eye) to make sure the measurement is accurate. If there is poor segmentation, the OCT measurement will be unreliable and occasionally measure abnormal thinning shown in the statistical map with red. Myopia is one of the most common causes of “red disease.”⁶