Method and apparatus for measuring relative afferent pupillary defects

A head-mounted display (HMD) device for evaluating pupillary responses of eyes of a patient comprising:

• a frame configured to be worn by a patient;
• a first eye scope including a first ocular aperture, a first light aperture and a first monitoring aperture, the first eye scope operably connected to the frame;
• a second eye scope including a second ocular aperture, a second light aperture and a second monitoring aperture, the second eye scope operably connected to the frame;
• an HMD processor operably connected to the first eye scope and the second eye scope;
• an internal camera operably connected to the HMD processor;
• and
• a storage device operably connected to the HMD processor and storing processor executable instructions which when executed causes the HMD processor to:
• expose a first eye of the patient to light stimulation in accordance with a relative afferent pupillary defects (RAPD) eye test by:
• presenting, by the HMD processor, a video recording of an external light source via the first eye scope to the first eye of the patient while the second eye scope proximate a second eye of the patient is off;
• and
• recording, by the internal camera, first pupil light response data from both the first eye and the second eye of the patient;
• expose a second eye of the patient to light stimulation in accordance with the same RAPD eye test by:
• turning off, by the HMD processor, the video recording being shown to the first eye of the patient while also presenting the video recording of the external light source via the second eye scope to the second eye of the patient;
• and
• recording, by the internal camera, second pupil light response data from both the first eye and the second eye of the patient;
• and
• generate, by the HMD processor utilizing the first pupil light response data and the second pupil light response data, a RAPD test result.