# US 9,519,830 B2 · Ophthalmologic image processing method and storage medium storing program for executing the method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,519,830 B2 - Document ID: US9519830B2 - Status: Granted - Kind: B2 - Application number: 14/610,058 - Filed: 2015-01-30 - Published: 2015-08-06 - Granted: 2016-12-13 - Earliest claimed: 2014-02-03 - Assignees: Nidek Co., Ltd. - Applicants: Nidek Co., Ltd. - Inventors: Kazunari Shimizu; Yukinobu Ban; Tetsuya Yamamoto - Web page: https://patentgrep.com/patent/US9519830B2 ## CPC - G06V 40/193: {Preprocessing; Feature extraction} - A61B 3/0025: {characterised by electronic signal processing, e.g. eye models} - A61B 3/10: Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions - A61B 3/1005: {for measuring distances inside the eye, e.g. thickness of the cornea (A61B3/11 takes precedence)} - A61B 3/1015: {for wavefront analysis} - A61B 3/103: for determining refraction, e.g. refractometers or skiascopes - A61B 3/107: for determining the shape or measuring the curvature of the cornea - A61B 3/112: {for measuring diameter of pupils} - A61B 3/14: Arrangements specially adapted for eye photography - A61B 3/117: for examining the anterior chamber or the anterior chamber angle, e.g. gonioscopes - G06T 2207/30041: Eye; Retina; Ophthalmic - G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ## Abstract An ophthalmic image processing method includes: acquiring information about characteristics of an examinee's eye including corneal information about the corneal anterior surface shape of the examinee's eye, and refractivity information about refraction of the examinees eye as a whole; generating a simulation image of a target image formed at fundus of the examinee's eye using the refractivity information; and simultaneously displaying an eyeball model image showing an eyeball structure, the simulation image, and a corneal information image associated with the cornea on the eyeball model image and corresponding to the corneal information. ## Claims ### Claim 1 An ophthalmic image processing method comprising: acquiring information about characteristics of an examinee's eye including corneal information about the corneal anterior surface shape of the examinee's eye, and refractivity information about refraction of the examinee's eye as a whole; generating a simulation image of a target image formed at fundus of the examinee's eye using the refractivity information; and simultaneously displaying an eyeball model image showing an eyeball structure, the simulation image, and a corneal information image associated with the cornea on the eyeball model image and corresponding to the corneal information. ### Claim 2 (depends on 1) The ophthalmic image processing method according to claim 1, comprising: acquiring intraocular information about at least one of opacity in the examinee's eye and refraction in the examinee's eye except for the corneal anterior surface; and displaying an intraocular information image corresponding to the intraocular information in association with the inside of the eyeball of the eyeball model image simultaneously with the eyeball model image, the simulation image, and the corneal information image. ### Claim 3 (depends on 2) The eye ophthalmic image processing method according to claim 2, comprising: acquiring a retro-illumination image of the examinee's eye as the intraocular information about the opacity in the examinee's eye; and displaying the retro-illumination image as the intraocular information image. ### Claim 4 (depends on 2) The ophthalmic image processing method according to claim 2, comprising: acquiring at least intraocular information about refraction in the examinee's eye except for the corneal anterior surface as the intraocular information; and displaying an intraocular refractivity information image concerning a refractive distribution corresponding to the intraocular information as the intraocular information image. ### Claim 5 (depends on 4) The ophthalmic image processing method according to claim 4, comprising: displaying a corneal refraction map indicating a refractive distribution on the corneal anterior surface as the corneal information image corresponding to the corneal information; and displaying an intraocular refraction map that is a refraction map of the inside of the examinee's eye except for the co ea as the intraocular refractivity information image. ### Claim 6 (depends on 1) The ophthalmic image processing method according to claim 1, further comprising: acquiring correction data for a corrective lens for correcting a refractive error of the examinee's eye; and generating a wearing simulation image that is a simulation image of the target image formed at the fundus of the examinee's eye wearing the corrective lens, using the refractivity information and the correction data. ### Claim 7 (depends on 6) The ophthalmic image processing method according to claim 6, further comprising: selecting one display mode from a plurality of display modes including a first display mode for displaying the wearing simulation image, and a second display mode for displaying a non-wearing simulation image that is a simulation image with respect to the examinee's eye not wearing the corrective lens; generating the wearing simulation image and the non-wearing simulation image; and displaying the wearing simulation image simultaneously with the eyeball model image, the simulation image, and the corneal information image when the first display mode is selected, or displaying the non-wearing simulation image simultaneously with the eyeball model image, the simulation image, and the corneal information image when the second display mode is selected. ### Claim 8 (depends on 7) The ophthalmic image processing method according to claim 7, comprising displaying a lens graphic representing the corrective lens at a lens fit position in the eyeball model image simultaneously with the wearing simulation image. ### Claim 9 (depends on 1) The ophthalmic image processing method according to claim 1, comprising displaying a refractivity information image concerning a distribution of refraction of the examinee's eye as a whole in the examination range and based on the refractivity information, simultaneously with the eyeball model image, the simulation image, and the corneal information image. ### Claim 10 (depends on 9) The ophthalmic image processing method according to claim 9, comprising displaying an aberration map showing a distribution of aberration caused in the examination range of the examinee's eye as the refractivity information image. ### Claim 11 (depends on 10) The ophthalmic image processing method according to claim 10, comprising displaying a high-order aberration map that is a two-dimensional map concerning a third or higher order of aberration caused in the examination range of the examinee's eye. ### Claim 12 (depends on 9) The ophthalmic image processing method according to claim 9, comprising displaying a total eye refraction map indicating a distribution of refraction of the examinee's eye as a whole in the examination range as the refractivity information image. ### Claim 13 (depends on 1) The ophthalmic image processing method according to claim 1, comprising: generating, as the simulation image, a first simulation image obtained by simulation using a first target that is a subjective examination target and a second simulation image obtained by simulation using a second target that is a point image; and displaying the first simulation image and the second simulation image simultaneously with the eyeball model image, the simulation image, and the corneal information image. ### Claim 14 (depends on 1) The ophthalmic image processing method according to claim 1, comprising: generating the simulation image in photopic vision based on data of a pupil diameter of the examinee's eye in photopic vision, and a simulation image in twilight vision based on the data of the pupil diameter of the examinee's eye in twilight vision; and displaying the simulation image in photopic vision and the anterior segment image of the examinee's eye in photopic vision in association with the anterior segment of the eyeball model image, and displaying the simulation image in twilight vision and the anterior segment image of the examinee's eye in twilight vision in association with the anterior segment of the eyeball model image. ### Claim 15 (depends on 1) The ophthalmic image processing method according to claim 1, comprising displaying a corresponding graphic for indicating a correspondence relationship between various locations of the eyeball model image and images associated with the various locations of the eyeball model image simultaneously with the eyeball model image, the simulation image, and the corneal information image. ### Claim 16 (depends on 1) The ophthalmic image processing method according to claim 1, comprising displaying images associated with various locations of the eyeball model image in an arrangement corresponding to an arrangement of various locations of the examinee's eye in the eyeball model image. ### Claim 17 A non-transitory storage medium having a computer program for causing a computer to function as an ophthalmic information processing device stored therein, the ophthalmic information processing device performing: acquiring information about the characteristics of an examinee's eye including corneal information about a corneal anterior surface shape of the examinee's eye and refractivity information about refraction of the examinee's eye as a whole; generating a simulation image of a target image formed at the fundus of the examinee's eye using the refractivity information; and simultaneously displaying an eyeball model image showing an eyeball structure, the simulation image, and a corneal information image associated with the cornea on the eyeball model image and corresponding to the conical information.