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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 35, Iss. 17 — Sep. 1, 2010
  • pp: 2888–2890

Differential amplitude scanning for retinal imaging: a theoretical study

Steve Gruppetta  »View Author Affiliations


Optics Letters, Vol. 35, Issue 17, pp. 2888-2890 (2010)
http://dx.doi.org/10.1364/OL.35.002888


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Abstract

A differential amplitude scanning system for ophthalmoscopy is described theoretically. The differential scanning ophthalmoscope (DSO) samples the retina with two laterally displaced spots. The signal measured is the difference between the irradiance from these two locations. The theoretical analysis of the DSO shows it offers increased contrast at high spatial frequencies and only weak contributions from the low frequencies. This enables high-gain, low-noise detection that maximizes contrast.

© 2010 Optical Society of America

OCIS Codes
(110.0110) Imaging systems : Imaging systems
(170.0110) Medical optics and biotechnology : Imaging systems
(170.0170) Medical optics and biotechnology : Medical optics and biotechnology
(170.0180) Medical optics and biotechnology : Microscopy
(170.1790) Medical optics and biotechnology : Confocal microscopy
(170.4460) Medical optics and biotechnology : Ophthalmic optics and devices

ToC Category:
Medical Optics and Biotechnology

History
Original Manuscript: July 7, 2010
Manuscript Accepted: July 23, 2010
Published: August 23, 2010

Virtual Issues
Vol. 5, Iss. 13 Virtual Journal for Biomedical Optics

Citation
Steve Gruppetta, "Differential amplitude scanning for retinal imaging: a theoretical study," Opt. Lett. 35, 2888-2890 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-17-2888


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References

  1. C. W. See and M. Vaez-Iravani, Appl. Opt. 27, 2786 (1988). [CrossRef] [PubMed]
  2. T.Wilson, ed., Confocal Microscopy (Academic, 1990).
  3. R. H. Webb, G. W. Hughes, and F. C. Delori, Appl. Opt. 26, 1492 (1987). [CrossRef] [PubMed]
  4. R. N. Bracewell, The Fourier Transform and its Applications, 3rd ed. (McGraw-Hill, 2000).
  5. T.Wilson and C.Sheppard, eds., Theory and Practice of Scanning Optical Microscopy (Academic, 1984).

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