Does transverse chromatic aberration limit performance of AO-OCT retinal imaging?

Donald T. Miller, Barry Cense, Eric Koperda, Ravi Jonnal, Weihua Gao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The combination of adaptive optics (AO) and optical coherence tomography (OCT) has been successfully applied to in vivo retinal imaging, motivated by the potential of unprecedented 3D resolution. The eye, however, not only suffers from monochromatic aberrations, which are corrected by AO, but also substantial chromatic aberrations, which are not. To correct chromatic aberrations, achromatizing lenses have been recently employed in ultrahigh resolution AO-OCT instruments. These lenses, like their earlier predecessors for vision improvement, effectively correct the eye's longitudinal chromatic aberration (LCA), but make no attempt at the complementary transverse chromatic aberration (TCA). This raises an important concern as to the degrading impact of TCA on the 3D resolution of AO-OCT and OCT retina cameras. To address this, we undertook a theoretical analysis of TCA for high-resolution retinal imaging. The theoretical analysis included the two primary contributors of TCA for retinal imaging: (1) errors in the lateral positioning of the eye and (2) off-axis imaging. The analysis predicted the extent to which TCA impacts retinal imaging and the conditions under which it can be held at acceptable levels for AO-OCT and OCT. Several near-infrared bands were chosen that correspond to common OCT light sources.

Original languageEnglish (US)
Title of host publication1st Canterbury Workshop on Optical Coherence Tomography and Adaptive Optics
Volume7139
StatePublished - Dec 1 2008
Externally publishedYes
Event1st Canterbury Workshop on Optical Coherence Tomography and Adaptive Optics - Canterbury, Kent, United Kingdom
Duration: Sep 8 2008Sep 10 2008

Other

Other1st Canterbury Workshop on Optical Coherence Tomography and Adaptive Optics
CountryUnited Kingdom
CityCanterbury, Kent
Period9/8/089/10/08

Keywords

  • Adaptive optics
  • Chromatic aberrations
  • Eye
  • Optical coherence tomography
  • Retinal imaging

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Does transverse chromatic aberration limit performance of AO-OCT retinal imaging?'. Together they form a unique fingerprint.

  • Cite this

    Miller, D. T., Cense, B., Koperda, E., Jonnal, R., & Gao, W. (2008). Does transverse chromatic aberration limit performance of AO-OCT retinal imaging? In 1st Canterbury Workshop on Optical Coherence Tomography and Adaptive Optics (Vol. 7139). [71390Z]