Abstract: A low-coherence light is split into a signal light and a reference light. The optical path length of the reference light is switched to optical path lengths that correspond to a first depth zone and a second depth zone. When forming a tomographic image of the second depth zone, in an optical system that condenses the signal light to the first depth zone when a measured object and an objective lens are located at a predetermined working distance, while being positioned at the working distance, a depth zone switching lens that transitions the depth at which the signal light is condensed to the second depth zone is inserted.

Abstract: A fundus photographing apparatus has an optical system including a movable focusing lens and photographing a fundus, an optical system photo-receiving by a first image pickup element a target from an alignment target projection optical system and detect an alignment state of the photographing optical system with respect to an eye based on a result by the first element, a detection optical system photo-receiving by a second image pickup element a target from a focus target projection optical system and detect a focus state adjusted by moving the lens based on a photo-receiving result by the second element, a unit controlling a light source to successively emit flash light at predetermined intervals in a predetermined period to perform fluorescent photographing, and a unit controlling movement of the photographing optical system with respect to the eye based on a result by the alignment detection optical system during the predetermined period.

Abstract: A fundus photographing apparatus includes: a photographing unit including a fundus illumination optical system to illuminate a fundus of a patient's eye and a fundus photographing optical system having a light receiving element to obtain a fundus image of the illuminated eye; and an alignment unit to position the photographing unit with the eye based on a predetermined alignment reference position. The alignment unit includes: an extracting part to extract, by image processing, an image region formed by reflection light from a portion other than the fundus from the fundus image obtained by the fundus photographing optical system; a gravity center calculating part to determine, by arithmetic processing, a gravity center position of the extracted image region; and a control part to perform alignment control of the photographing unit with the eye based on the calculated gravity center position and the alignment reference position.

Abstract: In order to automatically determine whether an eye to be inspected is an IOL eye by using bright spot images on a cornea for inspection at high accuracy, an ophthalmologic apparatus is provided with: a light beam projecting unit for projecting a light beam on the cornea of the eye to be inspected; a light receiving unit including an image pickup element for receiving a reflection light beam obtained by reflection of the light beam projected by the projecting unit to obtain cornea bright spot images from the cornea of the eye to be inspected; and an IOL eye determining unit for determining whether the eye to be inspected is the IOL eye based on the cornea bright spot images received by the light receiving unit.

Abstract: Provided is an ophthalmologic apparatus capable of executing accurate automatic alignment even for an eye having an intraocular lens (IOL) implanted therein. The ophthalmologic apparatus includes: an optical system including a light beam projecting unit for projecting a light beam to an eye to be inspected, and a light receiving unit for receiving a reflection light beam from the eye to be inspected; a detecting unit for detecting a plurality of bright spot images from the reflection light beam received by the light receiving unit; and a calculating unit for calculating an alignment status between the eye to be inspected and the optical system based on the detected plurality of bright spot images. The ophthalmologic apparatus is further provided with a selection unit for selecting bright spot images to be used for the calculation by the calculating unit, from among the plurality of bright spot images.

Abstract: Disclosed herein is a method of tracking the movement of an eyeball in eyeball tumor treatment. The method includes a calibration step of storing an actual length for each pixel of an image in a storage unit, a template image generation step of storing a patient's eyeball image as a template image of the patient's eyeball in the storage unit, an eyeball location tracking step of, during the treatment of the patient's eyeball, determining whether movement of the treatment image has occurred by comparing treatment images of the patient's eyeball in real time with the template image, and a control step of stopping the operation of the proton beam output device if the movement of the treatment image deviates from a preset tolerance range, and keeping operation of the proton beam output device normal if the movement of the treatment image is within the tolerance range.

Abstract: A system for interfacing a surgical laser with an eye includes a first sensing element to couple to an output surface of the laser, an interface lens having second sensing element coupled to a first surface of the interface lens, and a detector coupled to the first sensing element. A second surface of the interface lens contacts the eye. The detector determines when the first sensing element contacts the second sensing element. A method for aligning the laser with the eye includes coupling the laser to the patient interface, sensing an electrical change indicating a position of the output surface with the interface lens, comparing the electrical change with a predetermined value to produce a correction, and re-positioning the laser with the correction.

Abstract: Apparatus and techniques can include using one or more of a portable or fixed optical system to obtain images of a desired anatomical target, such as the fundus region of a human eye. The optical system can include one or more of a laser-based focusing target, a laser-based fixation target, or a removable or adjustable alignment assembly. Such an alignment assembly can provide or allow user alignment based on using anatomical landmarks other than the fundus being imaged. One or more of the apparatus or techniques can be implemented in an optical assembly included as a portion hand-held fundus camera, such as including or using a consumer or commercial digital camera to capture an image.

Abstract: Disclosed herein is a method of calculating tear film lipid and aqueous layer thicknesses and/or corneal surface refractive index from interferometry data obtained from simultaneous measurements of the aqueous and lipid layers of the tear film along with a measurement of the corneal surface reflectance.

Abstract: An ophthalmologic apparatus includes a first light source configured to emit a first measuring beam, a second light source configured to emit a second measuring beam having a center wavelength longer than that of the first measuring beam, a third light source configured to emit a third measuring beam having a center wavelength shorter than that of the first measuring beam, a first acquisition unit configured to obtain a first image of the subject's eye by using the return beam of the second measuring beam from the subject's eye, aberration of which has been corrected by a correction unit, and a second acquisition unit configured to obtain an anterior eye portion image of the subject's eye to be used for alignment, by using a return beam of the third measuring beam from the subject's eye.

Abstract: When an observation state by an infrared LED 10 is changed to a photographing state by a xenon lamp 3, a movable mirror 16 is pulled upward and an optical path is switched to an image sensor 17 side. A light guide 22a is shifted by an alignment index drive motor 23 so that an incident portion of an alignment index is shifted from a visible LED 22b to direct to an infrared LED 22c. An outgoing portion of the light guide 22a is set at a position where an image is formed on the image sensor 17 by a wavelength of the infrared LED 22c when an operation distance is appropriate. While changing a luminescent color, a position of a luminescent point of the alignment index is changed by switching the LED by the shift of the light guide 22a.

Abstract: The fundus observation apparatus 1 has a function to form tomographic images and 3-dimensional images of a fundus Ef by scanning signal light LS as well as a function to form a moving image (observation image K) of a fundus Ef during OCT measurement. Furthermore, the fundus observation apparatus 1 includes an x-correction part 231 and a y-correction part 232 for correcting a position in the fundus surface direction of the 3-dimensional image based on the observation image K, and a z-correction part 233 for correcting the position in the fundus depth direction of a 3-dimensional image, based on a tomographic image Gi of the fundus Ef based on the detection results of interference light LC of separately scanned signal light LS and reference light LR.

Abstract: A corneal endothelial cell photographing apparatus includes: a main unit that includes an illumination optical system, an imaging optical system, and a fixation optical system; a setting unit configured to preliminarily set illumination positions and an illumination order of the plurality of fixation lamps; a controller configured to obtain an endothelial image at a first fixation position, control the fixation optical system corresponding to a determination result for propriety of the endothelial image obtained at the first fixation position to light a fixation lamp corresponding to a second fixation position preliminarily set by the setting unit, and control the illumination optical system and the imaging optical system to obtain an endothelial image at the second fixation position; a monitor configured to display the endothelial image; and an operating unit configured to input a signal for operating at least the controller.

Abstract: A cornea imaging apparatus including: a collimation axis holding mechanism; an imaging mechanism; a Z-direction actuating means; an X-direction actuating means and a Y-direction actuating means; an inclination angle changing means that changes an inclination angle of an imaging center axis of the imaging mechanism against a collimation axis of an eye under examination; an endothelial configuration computing means that determines a corneal endothelial configuration; and a normal vector computing means that determines a normal vector direction at a given imaging position of the corneal endothelial configuration, wherein at the imaging position, the inclination angle and positions in the Z and X directions are set adjusted so as to align the imaging center axis of the imaging mechanism with the normal vector direction determined by the normal vector computing means.

Abstract: An alignment device including means for releasably attaching a suction ring and means for applying a pattern of light to an eye of a patient. The alignment device further including means for detecting light reflected from the eye and determining whether the suction ring is aligned relative to the eye based on the detected light.

Abstract: A fundus photographing apparatus includes a measurement unit including an optical coherence tomography system for obtaining a tomographic image of the fundus of an examinee's eye by detecting an interference state between measurement light from the fundus of the examinee's eye and reference light, a detection unit for detecting an alignment state perceived as a relative positional relationship between the measurement unit and the examinee's eye, and a controller for adjusting the optical coherence tomography system with respect to the fundus of the examinee's eye based on a detection result from the detection unit. The adjustment of the optical coherence tomography system includes at least one of an optical path length adjustment, which adjusts an optical path length difference between the measurement light and the reference light, and a focus adjustment.

Abstract: An optical coherence tomography imaging apparatus that captures a tomographic image of a subject's eye using interference light based on light from a wavelength-swept light source includes a region acquisition unit configured to acquire an imaging target region, a display control unit configured to display information about the acquired imaging target region, and an imaging unit configured to capture a tomographic image by scanning the imaging target region in the subject's eye using light from the wavelength-swept light source.

Abstract: An ophthalmic apparatus for measuring spatial distances within a patient's eye is disclosed. The apparatus can be used to measure, for example, the capsular bag depth in an aphakic eye. The spatial measurement system can direct laser light into a patient's eye so that a portion of the light is scattered by the capsular bag. The scattered light can be directed to a detector where spots can be formed corresponding to the locations on the capsular bag from which the light was scattered. The distance from the cornea to the capsular bag can be determined based, for example, at least in part on the distance between the spots formed on the detector. In some embodiments, the apparatus can include a surgical microscope and/or a wavefront aberrometer. In some embodiments, an alignment system can be used to precisely position the apparatus relative to the patient's eye.

Abstract: A retinal imaging device is provided comprising an optical stage, one or more illumination sources, an optical system, a position-sensitive optical tracking sensor, a retinal image sensor, and a tracking controller. The illumination sources are configured to direct an illumination beam onto a cornea of an eye under examination where the illumination beam undergoes both specular and diffuse reflection. The position-sensitive optical tracking sensor comprises a non-image forming sensor configured to generate a signal indicative of the relative positioning of relatively low and high intensity portions of an optical signal incident on the sensor, in at least two dimensions.

Abstract: When pattern recognition of a fundus image is started in step S1, output from a fundus image sensing unit is compared with a regional pattern of stored fundus image specific regions in step S2, and it is decided whether to proceed to pattern recognition. If pattern recognition is possible, based on an AF evaluation value, the lens is driven, with which automatic focusing is completed.

Abstract: Systems for imaging structures of a subject are provided. The subject has an optical axis, a pupil, and a nodal point. The system includes an image capture device; a first structure including a mount for the subject to be imaged by the image capture device, the first structure providing at least two rotational degrees of freedom; a second structure including a mount for the image capture device, the second structure providing at least two translational degrees of freedom; and a means for aligning the image capture device in relation to the optical axis, the pupil, and the nodal point of the subject.

Abstract: Systems and methods for documenting, recording, and interpreting the eccentric photorefraction, pupillary light reflex and the corneal light reflex eye screening tests in infants and young children. The system includes a computing device having an image capturing device, a light generating device, and a display. The system includes a computer application that is executable on the computing device and operative to utilize the computing device to perform eye screening tests. The system also includes a website that allows users to upload captured images from the computing device, so that the images may be processed, analyzed, and recorded.

Abstract: In an OCT apparatus used in ophthalmology, if a working distance between an eye to be inspected and an objective lens varies, a shape of an obtained tomographic image is changed. This means that the OCT apparatus cannot be used for examining a variation of eyeball shapes. Provided is an optical coherence tomographic imaging method, including: acquiring a first distance between the eye to be inspected and the objective lens, corresponding to first tomographic image of the eye to be inspected; and correcting the first tomographic image to be second tomographic image corresponding to a second distance between the eye to be inspected and the objective lens, which is different from the first distance.

Abstract: An ophthalmic apparatus comprising: an illumination optical system including a light source and configured to illuminate an eye to be examined; an imaging optical system including an image sensor and configured to image the eye illuminated by the illumination optical system; an optical member insertion/removal unit configured to insert/remove an optical member in/from at least one of optical paths in the illumination optical system and the imaging optical system; and a notification unit configured to notify an insertion/removal state of the optical member with respect to the optical path based on a signal output from the image sensor in synchronism with insertion/removal of the optical member in/from the optical path.

Abstract: The invention relates generally to optical tomographic imaging and in particular to systems and methods for adapting the resolution of imaging. One embodiment of the present invention is an apparatus for optical coherence tomography imaging, characterized by its ability to vary the axial resolution and scanning speed during imaging.

Abstract: A portable MEMS-based scanning laser ophthalmoscope (MSLO). In one example the MSLO includes a laser illumination sub-assembly that generates a laser illumination beam, a two-dimensional MEMS scan mirror configured to receive and scan the laser illumination beam over at least a portion of the retina of an eye to be imaged, an optical system configured to direct the laser illumination beam from the scan mirror into the eye to illuminate the retina, and a detector sub-assembly configured to intercept optical radiation reflected from the eye to generate an image of the retina. The optical system includes a polarized beamsplitter positioned between the scan minor and the eye and configured to direct the laser illumination beam to into the eye and to direct the optical radiation reflected from the eye to the detector sub-assembly.

Abstract: An apparatus and method by which an image is projected to pupils of a viewer. Preferably, the image covers only areas occupied by the pupils and tracks the areas occupied by the pupils such as to provide continuous display of the imagery to a viewer. The method is to dynamically control the direction of light into sub-apertures selected by a tracking device. By imaging selectively into the sub-apertures where the pupils are temporally located instead of imaging into a generally large area, the disclosed apparatus is power efficient and exclusive because the projected images are covert. This method is applicable to most biocular displays, for instance, but not limited to “see through” systems, which overlay imagery over real world scenes and where geometrically precise projection is critical. In one embodiment, the pupil scan apparatus is combined with a retinal scan apparatus to provide security. In this manner, only an authorized user of the apparatus can operate it.

Abstract: A fundus imaging apparatus comprises: a plurality of light source modules with different wavelengths; a moving unit adapted to move one of the plurality of light source modules to a position to illuminate a fundus of an eye to be examined through an illumination optical system, based on a selected imaging mode; and an image sensor which captures feedback light from the fundus of the eye illuminated through the illumination optical system.

Abstract: A method makes a customized progressive ophthalmic lens intended for an identified wearer that includes measurements of the inclination of the wearer's head. These measures are made when the wearer performs visual tasks in far-vision conditions, by consecutively looking horizontally, then towards the ground. A variation of the optical power of the progressive lens, below a reference direction for the far vision, is adjusted on the basis of the measure results. The habituation period of the wearer to the progressive lens can thus be reduced.

Abstract: A system, in one embodiment, includes an optical coherence tomography (OCT) imaging system having a light source configured to emit light. The OCT imaging system further includes a beam splitter configured to receive the light from the light source, split the light into a first light portion directed along a sample arm comprising a sample and a second light portion directed along a reference arm comprising a reference mirror, receive a first reflected light portion from the sample arm and a second reflected light portion from the reference arm, combine the first and second reflected light portions to obtain an interference signal. Further, the OCT imaging system includes a controller having logic configured to perform an auto-ranging process to match the reference arm with the sample arm.

Abstract: An ophthalmic system is provided that includes an ophthalmic imaging device to generate an image of a portion of an imaged eye of a patient, an image processor to determine a misalignment of the imaged eye and the imaging device by processing the generated image, and to generate a control signal according to the determined misalignment, and a misalignment-reduction system to receive the control signal, and to generate a misalignment-reduction response. The misalignment-reduction system can include a fixation light system or a gantry. In some cases a locator light system may provide additional alignment information for the image processor.

Abstract: An opthalmologic apparatus changes the wavelength of index light, which is projected on an eye to be examined, by selecting the light emission of a visible LED and an infrared LED, and changes the position of a split unit along an optical axis based on the selection.

Abstract: A simplified and cost-effective three-axis positioning device and method for ophthalmic examination instrument is disclosed. The three-axis positioning device includes an illuminating optical path for projecting light to illuminate an examinee's fundus; an imaging optical path including an objective lens for receiving the examinee's fundus image and light reflected from the examinee's cornea and eye-lens; a software-based alignment module for determining intensity and position of the reflected light on the fundus image to generate auxiliary positioning information; and an image displaying unit for showing the fundus image, the reflected light, and the auxiliary positioning information. From the intensity and position of the reflected light, x-, y- and z-axis relative positions between the examinee's pupil and the objective lens are obtained. An examiner adjusts the relative positions in three axes until they fall within an allowable deviation range, and a clear fundus image can be obtained.

Abstract: In order to take a good tomographic image without a complicated position adjustment operation by an inspector, an ophthalmologic apparatus is provided which acquires a fundus tomographic image by optical coherence tomography utilizing interference by low coherence light. The ophthalmologic apparatus includes a tomographic image acquiring unit for acquiring a tomographic image of an eye to be inspected, a tilt calculation unit for calculating a tilt of the tomographic image, and a relative position changing unit for changing a relative position between the tomographic image acquiring unit and the eye to be inspected based on the tilt of the tomographic image. An evaluation index may be devised that indicates a problem with the tomographic image or an anterior ocular image and the relative position changing means may change the relative position according to this evaluation index. The evaluation index is linked to the tilt of the tomographic image.

Abstract: An ophthalmologic apparatus including a splitting unit configured to split, on a light path in an optical observation system of an anterior segment of a subject's eye, an anterior segment image into a plurality of light beams at a position conjugated with the anterior segment, and an imaging unit configured to capture the anterior segment image via an image forming unit configured to form an image of the light beams coming from the anterior segment, split by the splitting unit.

Abstract: A method and apparatus for measuring the topography of the corneal and scleral regions of the eye. The measurements provide surface contours that are useful in the manufacture of scleral contact lenses.

Abstract: Systems and methods for tracking a head position of a user include obtaining digital images of the user's head, processing the images to locate anatomical structures beneath the visible surface, and using those determined locations as inputs to a computing device. In an embodiment, images of a user's face are processed to identify the irises of the eyes, identify pixels along a boundary between each iris and the surrounding sclera, determine an ellipse defined by the identified iris-sclera boundary pixels, determine a distance-to-pixel ratio based on a pixel length of a long axis of such an ellipse compared to a known or presumed diameter of the iris, locating the iris in a three-axis coordinate system, determining an optical axis vector of the eye in the three-axis coordinate system, and calculating a center of the eyeball based on the optical axis vector and a known or presumed eyeball radius.

Abstract: [Task] To provide a fundus oculi observation device capable of effectively performing dispersion compensation. [Means for Resolution] A fundus oculi observation device 1 functions as an optical image measurement device that splits a broadband light into a signal light LS and a reference light LR, superimposes the signal light LS propagated through a fundus oculi Ef and the reference light LR propagated through a reference mirror 174 to generate an interference light LC and forms an image of the fundus oculi Ef. The device 1 corrects the influence of dispersion of the reference light LR based on ocular information 212a, generates the interference light LC after the correction, detects this interference light LC, and forms an OCT image.

Abstract: An implantable system for determining the accommodation requirement in an artificial accommodation system by optical measurement of the pupil diameter and the surrounding luminance, including at least one optical system, at least one data acquisition system that does not contact the ciliary muscle and measures a diameter of the pupil and luminance around at least one eye as a physical control signal for the accommodation requirement, at least one data processing system for generating an actuating signal for the optical system from the detected physical control signals or for the purpose of switching to the standby mode, at least one energy supply system, and at least one fixing system. The system has one sensor or a plurality of sensors with sensor elements for measuring the pupil diameter and the surrounding luminance.

Abstract: An ophthalmic apparatus for precisely positioning an optical instrument, such as a wavefront aberrometer, in three dimensions with respect to a patient's eye. The ophthalmic apparatus may include an optical instrument directed in a first direction toward a target area to receive light therefrom and a camera directed in a second direction toward the target area to receive light therefrom, the first and second directions being non-parallel. The camera may include imaging optics to form an optical image on a photodetector array using light reflected from the target area. The ophthalmic apparatus may also include a processor configured to correlate a position of the optical image on the photodetector array with the distance between the optical instrument and the target area.

Abstract: An imaging-guided docking system can separate the tilt and location of an imaged ophthalmic target and present them in an intuitive manner for an ophthalmic surgeon. The docking system can include an ophthalmic imaging system to image a portion of an eye of a patient, an image processor to determine a location and an orientation of the imaged portion of the eye, and a guidance system, coupled to the ophthalmic imaging system, to guide an ophthalmic docking based on the determined location and orientation. In some implementations, the imaging system images an internal eye-structure to determine its orientation and a video-imaging system video-images a frontal eye-structure to determine a location of the frontal eye-structure. The determined orientation and location can be displayed for the surgeon. The alignment of ophthalmic procedures can also be assisted with this imaging capability, e.g. the placement and centration of IOLs into the lens capsule.

Abstract: A docking method for an ophthalmic system may include the steps of aligning a docking unit of the ophthalmic system and an eye; generating an image of an internal structure of the eye by an imaging system; improving an alignment of the docking unit with the internal structure of the eye in relation to the generated image; and docking the docking unit to the eye. The generating the image step may include computing scanning data by a processor corresponding to a scanning pattern; storing the scanning data in a data buffer; transferring the scanning data by the data buffer to an output module; outputting scanning signals by the output module to one or more scanners based on the scanning data; and scanning an imaging beam with the one or more scanners according to the scanning signals.

Abstract: An imaging-guided docking system can separate the tilt and location of an imaged ophthalmic target and present them in an intuitive manner for an ophthalmic surgeon. The docking system can include an ophthalmic imaging system to image a portion of an eye of a patient, an image processor to determine a location and an orientation of the imaged portion of the eye, and a guidance system, coupled to the ophthalmic imaging system, to guide an ophthalmic docking based on the determined location and orientation. In some implementations, the imaging system images an internal eye-structure to determine its orientation and a video-imaging system video-images a frontal eye-structure to determine a location of the frontal eye-structure. The determined orientation and location can be displayed for the surgeon. The alignment of ophthalmic procedures can also be assisted with this imaging capability, e.g. the placement and centration of IOLs into the lens capsule.

Abstract: In a device or a method for determining the direction of vision of an eye, a starting point or a final point of a light beam reflected by a part of the eye and detected by a detector system, or of a light beam projected by a projection system onto or into the eye two-dimensionally, describes a pattern of a scanning movement in the eye. The inventive method uses a displacement device that guides the center of the pattern of movement into the pupil or macula center of the eye, and a determination device that uses the pattern of movement of the scanning movement to determine the pupil center or macula center.

Abstract: A method and system for providing multiple ophthalmic and retinal blood measurements is outlined. By extracting multiple digitized wavelength images and quantitative data within a relatively short time period the method allows for compensation of a patient's eye or head movement, generation of ophthalmic clinical records, and determination of data relating to blood measurements, such as oxygen saturation and hemoglobin, in addition to ocular and other disease determinations. The method provides for multiple analysis and measurements within a single sitting of the patient, with a single simple instrument and without adaptations to the instrument during a patient's eye examination. Beneficially the approach allows for low cost, compact, and even portable implementations offering such analysis and determination outside the current ophthalmic centers providing eased access and earlier diagnosis opportunities.

Abstract: The present invention relates in general to taking geometrico-morphological measurements on a subject. More particularly, the invention relates to a method of measuring the position of a remarkable point of the subject's eye. The method includes amongst others, the steps of capturing images in different relative postures (APIV1, APIV2, (O1,X1,Y1,Z1), (O2,X2,Y2,Z2)) of a subject, identifying reference points of the eye ((RCG1, RCD1), (RCG2, RCD2)), and calculating the remarkable point (CROD, CROG) as a function of the captured images. The values of the posture parameter (APIV) are obtained by a position-identification element (60, 70, 80, 700, 800) having at least one known geometrical characteristic that is placed on the subject's head. Each captured image contains a representation of the position-identification element (60, 70, 80, 700, 800). The posture parameter is thus calculated as a function of these images and of the known geometrical characteristic.

Abstract: An anterior segment measuring apparatus includes: a light projecting optical system for forming a light section on an anterior segment; a light receiving optical system for obtaining a cross-sectional image of the anterior segment by scattering of the light section at the anterior segment; a displacement detection unit for detecting displacement in a direction orthogonal to the light section between the position where the actual cross-sectional image is acquired and the position of the expected cross-sectional image; and a controller for forming the cross-sectional image of the anterior segment, processing the cross-sectional image to measure the anterior segment, and correcting a measurement result for the anterior segment based on a detection result by the displacement detection unit.

Abstract: A fundus camera includes an imaging unit configured to capture a fundus image formed via a photographic optical system, a portion information detection unit configured to detect information about a predetermined portion of a fundus from image data acquired from the imaging unit, and an image generation unit configured to generate an image according to a tone curve which is changed according to a result of a detection performed by the portion information detection unit of the fundus image.

Abstract: An imaging control apparatus capable of causing a first imaging unit to capture a fundus image of a subject's eye and causing a second imaging unit to capture a tomographic image of the subject's eye includes a control unit configured to cause the first imaging unit to capture an image of the fundus of the subject's eye in a limited area smaller than the fundus image, a detection unit configured to detect a positional deviation of the fundus of the subject's eye based on an image of the area acquired according to the control, and a correction unit configured to correct an image capturing position of the tomographic image captured by the second imaging unit based on the detected positional deviation.

Abstract: A retinal function measurement apparatus capable of measuring a retinal function accurately and precisely. The apparatus has a first image obtaining optical system for obtaining a tomographic image of a fundus by optical coherence tomography using low coherent light, the optical system including a light source emitting the low coherent light, a scanning unit scanning measurement light being a part of the emitted low coherent light on the fundus, an interference optical system for synthesizing the measurement light reflected from the fundus and reference light being a part of the emitted low coherent light to interfere, and a first photodetector photo-receiving the interfered light, a stimulating light irradiation optical system for performing irradiation of stimulating light onto the fundus, and an image processing unit obtaining information on a retinal function by performing processing on a first tomographic image and a second tomographic image before/after the irradiation of the stimulating light.