NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Coherent fiber optic sensor for early detection of cataractogenesis in a human eye lensA lensless backscatter fiber optic probe is used to measure the size distribution of protein molecules inside an excised, but intact, human eye lens. The fiber optic probe, about 5 mm in diameter, can be positioned arbitrarily close to the anterior surface of the eye; it is a trans-receiver, which delivers a Gaussian laser beam into a small region inside the lens and provides a coherent detection of the laser light scattered by the protein molecules in the backward direction. Protein sizes determined from the fast and slow diffusion coefficients show good correlation with the age of the lens and cataractogenesis.
Document ID
19930053054
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Dhadwal, Harbans S.
(New York State Univ. Stony Brook, United States)
Ansari, Rafat R.
(NASA Lewis Research Center Cleveland, OH, United States)
Dellavecchia, Michael A.
(Wills Eye Hospital Philadelphia, PA, United States)
Date Acquired
August 16, 2013
Publication Date
February 1, 1993
Publication Information
Publication: Optical Engineering
Volume: 32
Issue: 2
ISSN: 0091-3286
Subject Category
Instrumentation And Photography
Accession Number
93A37051
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available