INTRODUCTION Circumscribed choroidal hemangiomas are vascular tumors associated with secondary changes in the overlying retinal pigment epithelium and neuro-sensory retina. Spectral-domain optical coherence tomography, a recent advancement in fundus imaging techniques provides high resolution images of the retina. We describe spectral domain Optical coherence tomography findings in a case of ci...

Retinal layer thickness, evaluated as a function of spatial position from optical coherence tomography (OCT) images is an important diagnostics marker for many retinal diseases. However, due to factors such as speckle noise, low image contrast, irregularly shaped morphological features such as retinal detachments, macular holes, and drusen, accurate segmentation of individual retinal layers is ...

We present a new wave-vector-space approach for solving inverse scattering problems. In our formulation, the theories for diffraction tomography and coherence gating are combined to explain 3D reconstruction with low-coherence light. Specifically, we apply this method to solve the scattering problem with broadband fields for transmission and reflection measurements. Our results can be applied t...

Background—A structurally and functionally normal choroidal vasculature is essential for retinal function. Therefore, a precise clinical understanding of choroidal morphology should be important for understanding many retinal and choroidal diseases. Methods—PUBMED (http://www.ncbi.nlm.nih.gov/sites/entrez?db=pubmed) was used for most of the literature search for this article. The criterion for ...

advances in optical coherence tomography have enabled a better appreciation of the role of pathologic choroidal changes in a variety of retinal disease. a “pachychoroid” (pachy-[prefix]: thick) is defined as an abnormal and permanent increase in choroidal thickness often showing dilated choroidal vessels and other structural alterations of the normal choroidal architecture. central serous c...

Hand-held OCT systems that offer physicians greater freedom to access imaging sites of interest could be useful for many clinical applications. In this study, by incorporating the theoretical speckle model into the decorrelation function, we have explicitly correlated the crosscorrelation coefficient to the lateral displacement between adjacent A-scans. We used this model to develop and study a...

Objectives: To review recent advances in imaging modalities available for diagnosis and surveillance of superficial bladder cancer. Methods: Detailed PubMed searches were performed using the terms “fluorescence cystoscopy,” “narrow-band imaging,” and “optical coherence tomography” with “bladder cancer” and “urothelial carcinoma.” Relevant literature was selected for analysis. We explored the cl...

OBJECTIVE To introduce a new ophthalmic optical coherence tomography technology that allows unprecedented simultaneous ultra-high speed and ultra-high resolution. METHODS Using a superluminescent diode source, a clinically viable ultra-high speed, ultra-high resolution spectral domain optical coherence tomography system was developed. RESULTS In vivo images of the retina, the optic nerve he...

PURPOSE To report the imaging features of Type 3 neovascularization secondary to exudative age-related macular degeneration on optical coherence tomography angiography (OCTA). METHODS All consecutive treatment-naive patients diagnosed with early-stage Type 3 neovascularization underwent imaging by color retinal photographs or multicolor imaging, fluorescein angiography, indocyanine green angi...