Current capabilities of anterior segment optical coherence tomography

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Optical coherence tomography of the anterior segment of the eye (AS-OCT) is a non-invasive method based on the principles of optical reflectometry (measurement of the degree of backscattering of light passing through transparent or translucent media). Limitations of the first devices of this type were associated with insufficient image quality of the details of the anterior chamber angle and the posterior parts of the lens, primarily due to the “working” level of the scanning wavelength (within 800 μm). Fundamentally new possibilities in the structural and functional assessment of the anterior segment of the eye are associated with the introduction into clinical practice of swept-source AS-OCT device — the CASIA2 anterior optical coherence tomograph (Tomey Corporation, Japan). Its high scanning speed (50 000 A-scans per second) with a wavelength of 1310 μm allows high-quality visualization by building a scan at a depth of 13 mm. The previous model (CASIA SS-1000, Tomey Corporation, Japan) supported scan depth of only 6 mm. This review summarizes the results of research on the clinical use of CASIA2 tomograph.

Keywords:

optical coherence tomography

lens

cataract

anterior chamber angle

Authors:

Alkharki L.

Krasnov Research Institute of Eye Diseases

SPIN RSCI: 6489-3529
Scopus AuthorID: 57210715970
ORCID: 0000-0001-6791-4219

Yusef Yu.N.

Krasnov Research Institute of Eye Diseases

SPIN RSCI: 6891-6138
Scopus AuthorID: 57192982029
ResearcherID: AAN-1722-2021
ORCID: 0000-0003-4043-456X

Budzinskaya M.V.

Krasnov Research Institute of Eye Diseases

SPIN RSCI: 3552-7061
Scopus AuthorID: 6508005851
ResearcherID: C-3026-2014
ORCID: 0000-0002-5507-8775

Avetisov K.S.

Krasnov Research Institute of Eye Disease

SPIN RSCI: 9920-7312
Scopus AuthorID: 8298053700
ORCID: 0000-0001-9195-8908

Shitikova A.V.

Research Institute of Eye Diseases

SPIN RSCI: 9879-2944
Scopus AuthorID: 57216742720
ORCID: 0000-0001-8249-9703

Received:

09.01.2024

Accepted:

18.02.2024

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