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OPHTHALMIC IMAGE
Year : 2019  |  Volume : 67  |  Issue : 7  |  Page : 1184

Wide-field montage image of spectral domain optical coherence tomography in polypoidal choroidal vasculopathy


Department of Vitreo-Retina, Giridhar Eye Institute, Kochi, Kerala, India

Date of Web Publication25-Jun-2019

Correspondence Address:
Dr. P C Ranjith
Fellow Vitreo-Retina, Giridhar Eye Institute, Ponneth Temple Road, Kadavanthra, Kochi - 682 020, Kerala
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijo.IJO_92_19

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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 2019 Jul 21];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,[1] normal subjects, diabetic retinopathy and Vogt-Koynagi-Harada disease.[2] 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[3] 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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Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.



 
  References Top

1.
Mori K, Kanno J, Gehlbach PL, Yoneya S. Montage images of spectral-domain optical coherence tomography in eyes with idiopathic macular holes. Ophthalmology 2012;119:2600-8.  Back to cited text no. 1
    
2.
Mori K, Kanno J, Gehlbach PL. Retinochoroidal morphology described by wide-field montage imaging of spectral domain optical coherence tomography. Retina 2016;36:375-84.  Back to cited text no. 2
    
3.
Klein T, Wieser W, Eigenwillig CM, Biedermann BR, Huber R. Megahertz OCT for ultrawide-field retinal imaging with a 1050nm Fourier domain mode-locked laser. Opt Express 2011;19:3044-62.  Back to cited text no. 3
    


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