Evolution of visual field defects and alterations of the retinal nerve fiber layer in the pituitary macroadenoma

Abstract

Purpose To evaluate the evolution of the visual field defects and the alterations of the retinal nerve fiber layer (RNFL), which are produced in intracranial neoplasms that affect the visual pathway. Methods Description of a clinical case. 44 years old male with a prolactin‐producing pituitary macroadenoma. The patient presented progressive defects in the visual field (bitemporal hemianopsia), observed by standard automated perimetry (SAP) (Humphrey, SITA Standard 30.2), and RNFL atrophy evaluated by means of monochromatic fiber photography, optical coherence tomography (OCT) and laser polarimetry (GDx VCC). Results An uncompleted removal of the tumor was performed by transsphenoidal approach. It was observed a mild and progressive recuperation of the visual field defects. The RNFL alterations did not show any change. Conclusion The visual field defects caused by intracranial space‐occupying tumors, may improved after resection of the tumor. Structural alterations in the RNFL remain stable.