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 ≥ 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.
© 2003 Optical Society of America
Original Manuscript: January 8, 2003
Revised Manuscript: June 4, 2003
Published: October 1, 2003
Xiang-Run Huang and Robert W. Knighton, "Diattenuation and polarization preservation of retinal nerve fiber layer reflectance," Appl. Opt. 42, 5737-5743 (2003)