scholarly journals Simultaneous Confocal Scanning Laser Ophthalmoscopy Combined with High-Resolution Spectral-Domain Optical Coherence Tomography: A Review

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Verônica Castro Lima ◽  
Eduardo B. Rodrigues ◽  
Renata P. Nunes ◽  
Juliana F. Sallum ◽  
Michel E. Farah ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
High Resolution ◽  
High Speed ◽  
Light Exposure ◽  
Spectral Domain ◽  
Scanning Laser ◽  
Diagnostic Tools ◽  
Optical Coherence ◽  
Confocal Scanning ◽  
Confocal Scanning Laser

We aimed to evaluate technical aspects and the clinical relevance of a simultaneous confocal scanning laser ophthalmoscope and a high-speed, high-resolution, spectral-domain optical coherence tomography (SDOCT) device for retinal imaging. The principle of confocal scanning laser imaging provides a high resolution of retinal and choroidal vasculature with low light exposure. Enhanced contrast, details, and image sharpness are generated using confocality. The real-time SDOCT provides a new level of accuracy for assessment of the angiographic and morphological correlation. The combined system allows for simultaneous recordings of topographic and tomographic images with accurate correlation between them. Also it can provide simultaneous multimodal imaging of retinal pathologies, such as fluorescein and indocyanine green angiographies, infrared and blue reflectance (red-free) images, fundus autofluorescence images, and OCT scans (Spectralis HRA + OCT; Heidelberg Engineering, Heidelberg, Germany). The combination of various macular diagnostic tools can lead to a better understanding and improved knowledge of macular diseases.

scholarly journals Assessment of the Optic Disc Morphology Using Spectral-Domain Optical Coherence Tomography and Scanning Laser Ophthalmoscopy

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Pilar Calvo ◽  
Antonio Ferreras ◽  
Beatriz Abadia ◽  
Mirian Ara ◽  
Michele Figus ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Open Angle Glaucoma ◽  
Roc Curves ◽  
Spectral Domain ◽  
Scanning Laser ◽  
Scanning Laser Ophthalmoscopy ◽  
Optical Coherence ◽  
Cirrus Oct ◽  
Confocal Scanning ◽  
Confocal Scanning Laser

Objective. To compare the equivalent optic nerve head (OHN) parameters obtained with confocal scanning laser ophthalmoscopy (HRT3) and spectral-domain optical coherence tomography (OCT) in healthy and glaucoma patients.Methods. One hundred and eighty-two consecutive healthy subjects and 156 patients with open-angle glaucoma were divided into 2 groups according to intraocular pressure and visual field outcomes. All participants underwent imaging of the ONH with the HRT3 and the Cirrus OCT. The ONH parameters and the receiver operating characteristic (ROC) curves were compared between both groups.Results. Mean age did not differ between the normal and glaucoma groups (59.55 ± 9.7 years and 61.05 ± 9.4 years, resp.;P=0.15). Rim area, average cup-to-disc (C/D) ratio, vertical C/D ratio, and cup volume were different between both instruments (P<0.001). All equivalent ONH parameters, except disc area, were different between both groups (P<0.001). The best areas under the ROC curve were observed for vertical C/D ratio (0.980 for OCT and 0.942 for HRT3;P=0.11). Sensitivities at 95% fixed-specificities of OCT parameters were higher than those of HRT3.Conclusions. Equivalent ONH parameters of Cirrus OCT and HRT3 are different and cannot be used interchangeably. ONH parameters measured with OCT yielded a slightly better diagnostic performance.

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