# US 2021/0240261 A1 · Augmented and virtual reality display systems for oculometric assessments > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0240261 A1 - Document ID: US20210240261A1 - Status: Published application - Kind: A1 - Application number: 17/161,511 - Filed: 2021-01-28 - Published: 2021-08-05 - Earliest claimed: 2020-01-31 - Assignees: Magic Leap, Inc. - Applicants: Magic Leap, Inc. - Inventors: Daniel Farmer; Dorion Bryce Liston - Web page: https://patentgrep.com/patent/US20210240261A1 ## CPC - G02B 27/0093: {with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking} - G06F 3/013: {Eye tracking input arrangements (G06F3/015 takes precedence)} - A61B 3/032: Devices for presenting test symbols or characters, e.g. test chart projectors (A61B3/036 takes precedence) - A61B 3/113: for determining or recording eye movement - G02B 27/0172: {characterised by optical features} - G02B 27/0179: {Display position adjusting means not related to the information to be displayed} - A61B 5/163: {by tracking eye movement, gaze, or pupil change} - G02B 27/0081: {with means for altering, e.g. enlarging, the entrance or exit pupil} - G02B 2027/0174: {holographic} - G02B 2027/0187: {slaved to motion of at least a part of the body of the user, e.g. head, eye} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract Example techniques are disclosed for increasing the sensitivity of an augmented or virtual reality display system to collecting eye-tracking data for detecting physiological conditions, such as neural processes. An example method includes accessing eye-tracking information associated with a control population and an experimental population, the eye-tracking information reflecting, for each user of the control population and the experimental population, eye-tracking metrics associated with the user; scaling the eye-tracking information based on the eye-tracking information associated with the control population; and determining a sensitivity measure reflecting a distance measure between the control population and experimental population. The sensitivity measure may be utilized to modify physical or operational parameters for the display system and/or the protocol for performing a test. ## Claims ### Claim 1 A method implemented by a system of one or more processors, the method comprising: accessing eye-tracking information associated with a control population and an experimental population, the eye-tracking information reflecting, for each user of the control population and experimental population, eye-tracking metrics associated with the user; scaling the eye-tracking information based on the eye-tracking information associated with the control population; and determining a sensitivity measure reflecting a distance measure between the control population and experimental population, wherein the sensitivity measure is usable to enhance identifying health conditions using eye-tracking of display devices used by users. ### Claim 2 (depends on 1) The method of claim 1, wherein the eye-tracking information was obtained from the display devices used by the users, the display devices having a same configuration and/or implementing a same oculometric protocol. ### Claim 3 (depends on 2) The method of claim 2, wherein the oculometric protocol includes the display devices having presented stimuli to the users at different perceived depths or depth planes. ### Claim 4 (depends on 1) The method of claim 1, wherein the experimental population includes users who have a same physiological condition and/or fall within a same cohort. ### Claim 5 (depends on 1) The method of claim 1, wherein scaling comprises scaling based on median and standard deviation determined from the control population. ### Claim 6 (depends on 1) The method of claim 1, wherein the sensitivity measure is associated with a configuration of a display device and/or an oculometric protocol. ### Claim 7 (depends on 1) The method of claim 1, wherein the determined sensitivity measure is compared with a different sensitive measure, the different sensitivity measure being associated with a different display device and/or a different oculometric protocol. ### Claim 8 A system comprising one or more processors, the system configured to present virtual content to a user of the system, wherein the system further comprises non-transitory computer storage media storing instructions that, when executed by the one or more processors, cause the one or more processors to perform operations comprising: accessing eye-tracking information associated with a control population and an experimental population, the eye-tracking information reflecting, for each user of the control population and experimental population, eye-tracking metrics associated with the user; scaling the eye-tracking information based on the eye-tracking information associated with the control population; and determining a sensitivity measure reflecting a distance measure between the control population and experimental population, wherein the sensitivity measure is usable to enhance identifying health conditions using eye-tracking of display devices used by users. ### Claim 9 (depends on 8) The system of claim 8, wherein the eye-tracking information was obtained from the display devices used by the users, the display devices having a same configuration and/or implementing a same oculometric protocol. ### Claim 10 (depends on 9) The system of claim 9, wherein the oculometric protocol includes the display devices having presented stimuli to the users at different perceived depths or depth planes. ### Claim 11 (depends on 8) The system of claim 8, wherein the experimental population includes users who have a same physiological condition and/or fall within a same cohort. ### Claim 12 (depends on 8) The system of claim 8, wherein scaling comprises scaling based on median and standard deviation determined from the control population. ### Claim 13 (depends on 8) The system of claim 8, wherein the sensitivity measure is associated with a configuration of a display device and/or an oculometric protocol. ### Claim 14 (depends on 8) The system of claim 8, wherein the determined sensitivity measure is compared with a different sensitive measure, the different sensitivity measure being associated with a different display device and/or a different oculometric protocol. ### Claim 15 (depends on 8) The system of claim 8, further comprising: a head-mounted display system comprising one or more processors, the head-mounted display system configured to present virtual content to a user of the head-mounted display system, wherein the head-mounted display system further comprises non-transitory computer storage media storing instructions that, when executed by the one or more processors, cause the one or more processors to access the sensitivity measure and modify an operational parameter of the head-mounted display system based on the sensitivity measure. ### Claim 16 (depends on 8) The system of claim 8, further comprising: a head-mounted display system comprising one or more processors, the head-mounted display system configured to present virtual content to a user of the head-mounted display system, wherein the head-mounted display system system further comprises non-transitory computer storage media storing instructions that, when executed by the one or more processors, cause the one or more processors to access the sensitivity measure and modify a measurement protocol presented by the head-mounted display system based on the sensitivity measure. ### Claim 17 Non-transitory computer storage media storing instructions that, when executed by a system comprising one or more processors and configured to present virtual content to a user of the system, cause the one or more processors to perform operations comprising: accessing eye-tracking information associated with a control population and an experimental population, the eye-tracking information reflecting, for each user of the control population and experimental population, eye-tracking metrics associated with the user; scaling the eye-tracking information based on the eye-tracking information associated with the control population; and determining a sensitivity measure reflecting a distance measure between the control population and experimental population, wherein the sensitivity measure is usable to enhance identifying health conditions using eye-tracking of display devices used by users. ### Claim 18 (depends on 17) The computer storage media of claim 17, wherein the eye-tracking information was obtained from the display devices used by the users, the display devices having a same configuration and/or implementing a same oculometric protocol. ### Claim 19 (depends on 18) The computer storage media of claim 18, wherein the oculometric protocol includes the display devices having presented stimuli to the users at different perceived depths or depth planes. ### Claim 20 (depends on 17) The computer storage media of claim 17, wherein the sensitivity measure is associated with a configuration of a display device and/or an oculometric protocol.