Past and Present Terminology for the Retinal and Choroidal Structures in Optical Coherence Tomography

Abstract

Spectral domain optical coherence tomography (SD-OCT) is a non-invasive imaging method which is used in the diagnosis and followup of various macular diseases. SD-OCT provides detailed imaging of the retina. However, it has also been used to evaluate the choroidal layers. There are many publications on the OCT terminology, the definition and classification of retinal and choroidal structures including lines, bands and zones described in OCT. The aim of this review is to provide an overview of the literature on the past and present terminology for the retinal and choroidal structures seen in SD-OCT. To know OCT terminology will provide to be understanding better the pathogenesis of these diseases and the effects of therapeutic applications for these. KeywordsOptical coherence tomography, terminology, international nomenclature Disclosure: Burak Turgut has nothing to disclose with any trade or device in relation to this article. No funding was received for the publication of this article. This study involves a review of the literature and did not involve any studies with human or animal subjects performed by any of the authors.Authorship: All named authors meet the International Committee of Medical Journal Editors (ICMJE) criteria for authorship of this manuscript, take responsibility for the integrity of the work as a whole, and have given final approval to the version to be published.Open Access: This article is published under the Creative Commons Attribution Noncommercial License, which permits any non-commercial use, distribution, adaptation and reproduction provided the original author(s) and source are given appropriate credit. In this review, based on the literature, it has been aimed to provide an overview of the definition and classification of the retinal and choroidal structures seen in SD-OCT, and to propose the standard nomenclature and terminology for these structures.To know the INOCT, OCT terminology and nomenclature of retinal and choroidal layers, the landmarks, zones, bands and lines described in OCT in healthy eyes will also provide to be understanding better the pathogenesis of various macular diseases and the effects of therapeutic applications for these.

Importance of Optical Coherence Tomography and Optical Coherence Tomography Angiography in the Imaging and Differentiation of Choroidal Melanoma: A Review

“…The myoid zone is not a proper retinal layer, but contains ribosomes, endoplasmic reticulum, Golgi bodies, and mitochondria. IDZ corresponds to the tips of outer photoreceptor segments [ 4 , 5 , 6 ]. More deeply located are the choroid and the sclera, both poorly visible on conventional OCT scans.…”