In awake craniotomy, cortical- and subcortical structures are electrically stimulated to localize neural tissue involved in speech processing and other high-order brain functions. The surgical goal is to achieve maximal resection without causing permanent neurological deficits. Gliomas may involve the visual cortex or optic radiations. Electrical stimulation of those structures produces phosphenes, visual blurring or scotomas, phenomena that the patient is instructed to report. It is also possible to perform visual testing in the awake patient to avoid post-operative visual field defects. Obviously, it is critical that the patient remains focused on a center target to avoid false negative stimulation results i.e., where visual defects are not detected because the patient changes focus towards the presented object. Here, I present the feasibility of using infrared eye tracking during awake craniotomy to monitor eye position during visual field testing. A custom-made system for intraoperative language, neuropsychological and visual testing has been used at our institution since 2013. Different testing protocols are available and chosen depending on the surgical area of interest. For visual testing, the patient is instructed to denominate objects in one of the four visual quadrants while focusing on a target in the center of a screen. Positive stimulus results may then be detected either as speech error (e.g. anomia) or visual phenomenon reported by the patient. Images are presented on 25-in. monitor approximately 20 in. (50 cm) from the patient. The patient is positioned in the lateral position. An eyetracker, using near infra-red pupil center corneal reflection is secured at the bottom of the screen. Eye position is represented by a graphical object superimposed on the presented image. Ten patients have been tested by eye-tracking pre- and intraoperatively. Preoperatively (one day before surgery), eye-tracking was successful in all tested individuals during visual field testing. Intraoperatively, it was possible to confirm that the patient was focusing on the center of the screen in 60% of the cases. The main reason for failed eye tracking was drowsiness and/or suboptimal positioning of the monitor (e.g., downward gazing) where the eyelids tend to cover too much of the cornea for successful detection of the corneal reflection. Although it is sufficient to only track one eye, drooping of the upper eye lid from released scalp tissue in frontal surgery may further preclude successful eye tracking. Eye tracking with near infrared technique is feasible during awake glioma surgery. We aim to further explore the technique to increase the validity of visual field testing and to some extent monitor vigilance during other types of tests.