Interferometry and ophthalmics at the College of Optical Sciences

John E. Greivenkamp; Gregory A. Williby; Eric P. Goodwin; Brian C. Primeau; Kyle C. Heideman; Jason D. Micali; Russell T. Spaulding

doi:10.1117/12.2064333

Interferometry and ophthalmics at the College of Optical Sciences

John E. Greivenkamp, Gregory A. Williby, Eric P. Goodwin, Brian C. Primeau, Kyle C. Heideman, Jason D. Micali, Russell T. Spaulding

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Scopus citations

Abstract

A long-term research program has been in place at the College of Optical Sciences to apply interferometry to ophthalmic applications. These unique systems have been developed in response to industrial need. The first system is a transmission Mach-Zehnder interferometer used to measure the transmitted wavefront of a contact lens while it is submersed in saline. This interferometer allows the refractive power distribution of the lens to be measured. A second system makes use of a low-coherence interferometer to measure the index of refraction of contact lens materials. This task is complicated by the fact that the material is only available in very thin, flexible samples, and because the sample must remain hydrated in saline during the measurement. A third system also makes use of low-coherence interferometry to characterize the surface profile of both surfaces of a contact lens. Combined with index information, a complete model of the contact lens can be produced. Two additional interferometers examine the dynamics of fluid layers on the surface of a contact lens (in vitro) and of the tear film on the surface of the cornea (in vivo). Both systems are instantaneous phase shifting Twyman-Green interferometers. The evolution and changes to the fluid surface is measured at video rates with sub-wavelength precision. This paper tells the story of this research program.

Original language	English (US)
Title of host publication	Fifty Years of Optical Sciences at the University of Arizona
Editors	John E. Greivenkamp, Eustace L. Dereniak, Harrison H. Barrett
Publisher	SPIE
ISBN (Electronic)	9781628412130
DOIs	https://doi.org/10.1117/12.2064333
State	Published - 2014
Event	50 Years of Optical Sciences at the University of Arizona - San Diego, United States Duration: Aug 19 2014 → Aug 20 2014

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	9186
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Other

Other	50 Years of Optical Sciences at the University of Arizona
Country/Territory	United States
City	San Diego
Period	8/19/14 → 8/20/14

Keywords

Contact Lenses
Cornea
Index Measurement
Interferometry
Low Coherence Interferometry
Ophthalmics
Tear Film
Whole Lens Reconstruction

ASJC Scopus subject areas

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

Access to Document

10.1117/12.2064333

Cite this

Greivenkamp, J. E., Williby, G. A., Goodwin, E. P., Primeau, B. C., Heideman, K. C., Micali, J. D., & Spaulding, R. T. (2014). Interferometry and ophthalmics at the College of Optical Sciences. In J. E. Greivenkamp, E. L. Dereniak, & H. H. Barrett (Eds.), Fifty Years of Optical Sciences at the University of Arizona Article 91860W (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9186). SPIE. https://doi.org/10.1117/12.2064333

Interferometry and ophthalmics at the College of Optical Sciences. / Greivenkamp, John E.; Williby, Gregory A.; Goodwin, Eric P. et al.
Fifty Years of Optical Sciences at the University of Arizona. ed. / John E. Greivenkamp; Eustace L. Dereniak; Harrison H. Barrett. SPIE, 2014. 91860W (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9186).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Greivenkamp, JE, Williby, GA, Goodwin, EP, Primeau, BC, Heideman, KC, Micali, JD & Spaulding, RT 2014, Interferometry and ophthalmics at the College of Optical Sciences. in JE Greivenkamp, EL Dereniak & HH Barrett (eds), Fifty Years of Optical Sciences at the University of Arizona., 91860W, Proceedings of SPIE - The International Society for Optical Engineering, vol. 9186, SPIE, 50 Years of Optical Sciences at the University of Arizona, San Diego, United States, 8/19/14. https://doi.org/10.1117/12.2064333

Greivenkamp JE, Williby GA, Goodwin EP, Primeau BC, Heideman KC, Micali JD et al. Interferometry and ophthalmics at the College of Optical Sciences. In Greivenkamp JE, Dereniak EL, Barrett HH, editors, Fifty Years of Optical Sciences at the University of Arizona. SPIE. 2014. 91860W. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.2064333

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Interferometry and ophthalmics at the College of Optical Sciences

Abstract

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Keywords

ASJC Scopus subject areas

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