Optic Disc Changes in Pathologic Myopia

Visual field defects due to optic nerve changes are common in eyes with pathologic myopia (PM). However, it is sometimes difficult to suspect the presence of visual field defects because of the existing deformity of the optic disc. Optical coherence tomography (OCT) is useful to detect structural abnormalities in and around the optic nerve, such as acquired optic disc pits, acquired conus pits, focal lamina defects, and peripapillary intrachoroidal cavitation (ICC).