|Year : 2019 | Volume
| Issue : 7 | Page : 1184
Wide-field montage image of spectral domain optical coherence tomography in polypoidal choroidal vasculopathy
PC Ranjith, Anantharaman Giridhar, Mahesh Gopalakrishnan
Department of Vitreo-Retina, Giridhar Eye Institute, Kochi, Kerala, India
|Date of Web Publication||25-Jun-2019|
Dr. P C Ranjith
Fellow Vitreo-Retina, Giridhar Eye Institute, Ponneth Temple Road, Kadavanthra, Kochi - 682 020, Kerala
Source of Support: None, Conflict of Interest: None
|How to cite this article:|
Ranjith P C, Giridhar A, Gopalakrishnan M. Wide-field montage image of spectral domain optical coherence tomography in polypoidal choroidal vasculopathy. Indian J Ophthalmol 2019;67:1184
|How to cite this URL:|
Ranjith P C, Giridhar A, Gopalakrishnan M. Wide-field montage image of spectral domain optical coherence tomography in polypoidal choroidal vasculopathy. Indian J Ophthalmol [serial online] 2019 [cited 2020 Feb 23];67:1184. Available from: http://www.ijo.in/text.asp?2019/67/7/1184/261061
Montage techniques using SD-OCT have been tried in idiopathic macular holes, normal subjects, diabetic retinopathy and Vogt-Koynagi-Harada disease. We present a wide-field montage image from macula to the fundus periphery in a case of polypoidal choroidal vasculopathy (PCV) by using spectral domain optical coherence tomography (SD-OCT) [Figure 1]a. While the SD-OCT features in the macula for PCV are well defined [Figure 1]b and [Figure 1]c, there is a paucity of data concerning the peripheral SD-OCT changes. Merging the SD-OCT the scan length obtained was 26 mm. This enables us to visualize the pathology in relation to other retino-choroidal areas and the optic disc. This helps us study the peripheral changes in a single image. Advantages include no additional costs, large scan length, and more information in a single image. This manual technique is time consuming, automated algorithms, and swept-source imaging with wider scans may overcome this issue.
|Figure 1: Combined SD-OCT and multicolor image (a) montage SD-OCT showing the large pigment epithelial detachment nasal to the fovea with hyper reflective double layer sign, (b) a 3-Dimensional slab, and (c) a 200 degrees fundus image (Optos PLC, Dunfermline, Scotland, UK)|
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