OBJECTIVE To describe the clinical and imaging findings in patients with focal choroidal excavation. METHODS Retrospective observational case series. The medical records of 12 patients (13 eyes) with focal choroidal excavation were reviewed. Clinical histories and imaging findings (including color photography, fundus autofluorescence imaging, fluorescein angiography, indocyanine green angiogr...

PURPOSE To assess enhanced depth imaging optical coherence tomography (EDI-OCT) visualization of deep posterior pole structures and retrobulbar tissues in myopic eyes and evaluate ocular structural elements that influence this capability. METHODS Thirty consecutive myopic eyes (>-6 diopters) from 21 patients were enrolled. Exclusion criteria included any pathological condition affecting the p...

At present, optical coherence tomography systems have a limited imaging depth or axial scan range, making diagnosis of large diameter arterial vessels and hollow organs difficult. Adaptive ranging is a feedback technique where image data is utilized to adjust the coherence gate offset and range. In this paper, we demonstrate an adaptive optical coherence tomography system with a 7.0 mm range. B...

AIM: To investigate the aqueous vein in vivo by using enhanced depth imaging optical coherence tomography (EDI-OCT) and angiography (OCTA). METHODS: In this cross-sectional comparative study, 30 healthy participants were enrolled. Images of conjunctival veins captured EDI-OCT OCTA before after water loading. The area, height, width, location blood flow measured Image J software. RESULTS: static...

Spectral domain optical coherence tomography (SD-OCT) is a noninvasive technique to visualize cross-sectional images of vitreoretinal structures. Image averaging during eye tracking increases the signalto-noise ratio and improves image quality. The point of maximum sensitivity on SD-OCT (known as the “zero-delay line”) is in the vitreous; with increasing depth, the signal is reduced and details...

Purpose: To describe the spectral-domain optical coherence tomography features of chorioretinal folds of various etiology. Materials and methods: Cross-sectional observational case series of consecutive patients with chorioretinal folds. All patients underwent enhanced depth imaging optical coherence tomography over a two-month study period. Clinical variables and imaging features including sub...