Ganglion Cell Layer and Retinal Nerve Fiber Layer Analyses are Both Predictive of Visual Field Recovery Following Resection of Pituitary Adenomas

Following resection of pituitary adenomas, varying degrees of visual recovery occur ranging from no improvement to complete recovery. Several factors have been identified that are predictive of visual recovery, including pre-surgical retinal nerve fiber layer (RNFL) thickness obtained from optical coherence tomography (OCT).1,2 Because decisions on treatment are more influenced by visual function close to and including fixation, ganglion cell layer (GCL) analysis by OCT that encompasses the central six to eight degrees may provide more meaningful clinical information than the RNFL. This study examines the pre-surgical RNFL and GCL, and their ability to predict visual field recovery.