In vivo retinal optical coherence tomography at 1030 nm with enhanced penetration into the choroid

A. Unterhuber; B. Povazay; B. Hermann; H. Sattmann; S. Michels; S. Sacu; C. Ahlers; C. Scholda; A. Chavez-Pirson; U. Schmidt-Erfurth; Adolf F. Fercher; W. Drexler

doi:10.1117/12.632961

7 October 2005 In vivo retinal optical coherence tomography at 1030 nm with enhanced penetration into the choroid

A. Unterhuber, B. Povazay, B. Hermann, H. Sattmann, S. Michels, S. Sacu, C. Ahlers, C. Scholda, A. Chavez-Pirson, U. Schmidt-Erfurth, Adolf F. Fercher, W. Drexler

Author Affiliations +

Proceedings Volume 5861, Optical Coherence Tomography and Coherence Techniques II; 586103 (2005) https://doi.org/10.1117/12.632961
Event: European Conferences on Biomedical Optics 2005, 2005, Munich, Germany

Abstract

In vivo retinal imaging with ~ 8 μm axial resolution at 1030 nm is demonstrated for the first time, enabling enhanced penetration into the choroid. A new high power, broad bandwidth light source based on amplified spontaneous emission (NP Photonics, λ_c = 1030 nm, Δλ= 50 nm, P_out = 25 mW) has been interfaced to a time domain ophthalmic OCT system. In vivo retinal OCT tomograms performed at 800 nm are compared to those achieved at 1030 nm. Retinal OCT at longer wavelengths, e.g. 1030 nm significantly improves the visualization of the retinal pigment epithelium/choriocapillaris/choroid interface and might therefore provide new insight into choroidal/choriocapillary changes in age-related macular degeneration and other diseases of the retinal pigment epithelium (RPE)-choroid complex. 1030 nm OCT could also become a valuable tool in monitoring treatment effects on the choroids as in Verteporfin therapy.

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A. Unterhuber, B. Povazay, B. Hermann, H. Sattmann, S. Michels, S. Sacu, C. Ahlers, C. Scholda, A. Chavez-Pirson, U. Schmidt-Erfurth, Adolf F. Fercher, and W. Drexler "In vivo retinal optical coherence tomography at 1030 nm with enhanced penetration into the choroid", Proc. SPIE 5861, Optical Coherence Tomography and Coherence Techniques II, 586103 (7 October 2005); https://doi.org/10.1117/12.632961

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KEYWORDS

Optical coherence tomography

In vivo imaging

Light sources

Visualization

Eye

Image resolution

Photonics

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