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Not only the usage fields for this technology have broadened, but also a research niche has appeared as the hardware improved and became more affordable. Experiments in vision research are constructed upon the basis of accurately displaying stimuli with a specific position and size. For classical screen setups, viewing distance and pixel position on the screen define the perceived position for subjects in a relatively precise fashion. However, projection fidelity in HMDs strongly depends on eye and face physiological parameters. This study introduces an inexpensive method to measure the perceived field of view and its dependence upon the eye position and the interpupillary distance, using a super wide angle camera. Measurements of multiple consumer VR headsets show that manufacturers\u2019 claims regarding field of view of their HMDs are mostly unrealistic. Additionally, we performed a \u201cGoldmann\u201d perimetry test in VR to obtain subjective results as a validation of the objective camera measurements. 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Y.S., A.S. and M.G. are scientists at the University T\u00fcbingen, and S.W. is scientist at the University T\u00fcbingen and is employed by Carl Zeiss Vision International GmbH (E).","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}},{"value":"The code generated during the current study is available from the corresponding author on reasonable request.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Code availability (software application or custom code)"}},{"value":"The study adhered to the tenets of the Declaration of HELSINKI (2013). The ethics authorization to perform the measurements was granted by the Medicine Faculty Human Research Ethics Committee from the University of T\u00fcbingen with the ID 986\/2020B02. Prior to data collection, the experiment was explained in detail to the participants, and written informed consent was collected from each participant. All data were pseudo-anonymized and stored in full compliance with the principles of the Data Protection Act GDPR 2016\/679 of the European Union.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval"}}]}}