Patent ID: 11937877
Assignee: SCHEPENS EYE RESEARCH INSTITUTE, INC.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 9:
10. A method for measuring dark adaptation characteristics of a patient using virtual reality goggles (VR goggles) comprising:
exposing at least a first eye of the patient to a light source in the VR goggles to bleach a retinal location of the first eye;
displaying to the first eye on a display of the VR goggles a first fixation target and a first test stimulus, the first fixation target having a constant luminance and the first test stimulus having a variable luminance;
instructing the patient by the VR goggles or an associated computer system to look at the first fixation target with the first eye and waiting until the patient communicates with the VR goggles or the associated computer system to acknowledge that the patient can see the first test stimulus with the first eye;
reducing the luminance of the first test stimulus on the display of the VR goggles and waiting for the patient to acknowledge that the patient can see the first test stimulus with the reduced luminance;
continuing to reduce the luminance of the first test stimulus on the display and waiting for the patient to acknowledge that the patient can see each reduced luminance first test stimulus until either a maximum allowable time period has expired or the first test stimulus with a lowest possible luminance has been displayed by the VR goggles and acknowledged by the patient;
recording in a memory of the VR goggles or the associated computer system a level of the luminance of the first test stimulus and a time period between first displaying the first test stimulus and the patient communicating with the VR goggles or the associated computer system for each instance of displaying the first test stimulus;
determining, by a processor of the VR goggles or the associated computer system, dark adaptation measurements of the first eye based on the measured and recorded luminance and time periods; and
further comprising monitoring fixation of the first eye based on images taken of a second eye by an imaging device of the VR googles.