Purpose Comparison of optical coherence tomography (OCT) segmentation performance regarding technical accuracy and clinical relevance. Methods 29 eyes were imaged prospectively with Spectralis (Sp), Cirrus (Ci), 3D-OCT 2000 (3D) and RS-3000 (RS) OCTs. Raw data were evaluated in validated custom software. A 1 mm diameter subfield, centred on the fovea, was investigated to compare identical regions for each case. Segmentation errors were corrected on each B-scan enclosed in this subfield. Proportions of wrongly segmented A-scans were noted for inner and outer retinal boundaries. Centre point thickness (CPT) and central macular thickness (CMT) were compared before and after correction. Results Segmentation ...

Purpose. To assess photoreceptor structure in macular microholes by using adaptive optics scanning laser ophthalmoscopy (AO-SLO) and spectral-domain optical coherence tomography (SD-OCT) and compare with visual acuity. Methods. Fourteen eyes from 12 patients with macular microholes underwent a full ophthalmologic examination and imaging with a fundus camera, SD-OCT, and an original prototype AO-SLO system at each visit. Results. All eyes had a cone outer segment tip line disruption and a normal retinal pigment epithelium line on SD-OCT images. Adaptive optics scanning laser ophthalmoscopy revealed foveal cone disruption (13 eyes, round or oval; 1 eye, T-shaped) in all eyes. Cone disruption ...

There is provided an ophthalmic analysis apparatus configured to acquire an analysis result of a tomographic image of a subject eye which is acquired by using optical coherence tomography (OCT), and to output the analysis result. The apparatus functions as a display control unit configured to control a display unit to display a two-dimensional image based on an OCT tomographic image; an analysis region setting unit configured to set multiple analysis regions on the two-dimensional image displayed on the display unit by the display control unit; and an output control unit configured to acquire an analysis result in the multiple ...

There is provided an ophthalmic imaging apparatus including an optical coherence tomography (OCT) optical system for acquiring a tomographic image of a subject eye, an observation optical system configured to acquire a front image of the subject eye. The apparatus functions as an image generation unit which repeatedly generates the tomographic image based on an output signal from the OCT optical system, and repeatedly generates the front image based on an output signal from the observation optical system, a determination unit which detects a positional deviation between a reference front image and each of front images generated by the image ...

An ophthalmic photographing apparatus includes an optical coherence tomography device provided to imaging a tomographic image of an examinee's eye. The device includes: an irradiation position changing unit for changing an irradiation position of measurement light emitted from a light source on the eye to change an imaging position on the eye; and a detector for detecting a interference state between the measurement light reflected from the eye and reference light, and a displacement detecting unit provided to detect displacement in continuity between a tomographic image having already been obtained in a first imaging region and a tomographic image ...