Choroidal imaging biomarkers.

Abstract:

:The choroid is the vascular coat of the eye, and its role has been studied in multiple chorioretinal disorders. Recent advancements in choroidal imaging techniques, including enhanced depth imaging optical coherence tomography, swept source optical coherence tomography, en face optical coherence tomography, and optical coherence tomography angiography have facilitated an in-depth analysis of the choroid. The gradual shift from manual to automated segmentation and binarization methods have led to precise and reproducible measurements of choroidal parameters. These qualitative and quantitative parameters, called choroidal imaging biomarkers, have evolved over the past decade from a simple linear subfoveal choroidal thickness to more complex 3D choroidal reconstruction, thus widening the spectrum encompassing multiple parameters. These biomarkers have provided a better understanding of the pathogenesis, are helpful in diagnostic dilemmas, and, in the future may also help to devise treatment options. The lack of normative data, absence of standardized parameters, and limitations of the imaging techniques, however, have led to ambiguity and difficulty in the interpretation of these variables. We attempt to address these lacunae in the literature and provide a basic understanding of the choroid in both health and disease using these choroidal biomarkers.

journal_name

Surv Ophthalmol

journal_title

Survey of ophthalmology

authors

Singh SR,Vupparaboina KK,Goud A,Dansingani KK,Chhablani J

doi

10.1016/j.survophthal.2018.11.002

subject

Has Abstract

pub_date

2019-01-01 00:00:00

pages

312-333

issue

3

eissn

0039-6257

issn

1879-3304

pii

S0039-6257(18)30108-5

journal_volume

64

pub_type

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