Diattenuation and polarization preservation of retinal nerve fiber layer reflectance.
The diattenuation spectrum of the retinal nerve fiber layer (RNFL) reflectance has been predicted to depend strongly on the relative refractive index (m) of light-scattering cylinders. To constrain the values of m, diattenuation of the RNFL reflectance of isolated rat retina was measured with a multispectral imaging micropolarimeter. The RNFL reflection has very weak intrinsic diattenuation at all wavelengths (400-830 nm), which rejects all values of m > or = 1.03. Degree of polarization (DOP) for reflection from the RNFL was also measured. DOP was close to unity at all wavelengths, which indicates that the RNFL is a polarization-preserving reflector.
Huang
Xiang-Run
XR
Bascom Palmer Eye Institute, University of Miami School of Medicine, PO Box 016880, Miami, Florida 33101-6880, USA.
Knighton
Robert W
RW
D000818:Animals; D008859:Microscopy, Polarization; D008962:Models, Theoretical; D009412:Nerve Fibers / Q000648:ultrastructure*; D051381:Rats; D012160:Retina / Q000648:ultrastructure*; D012542:Scattering, Radiation