Huang Xiang-Run, Knighton Robert W
Bascom Palmer Eye Institute, University of Miami School of Medicine, PO Box 016880, Miami, Florida 33101-6880, USA.
Appl Opt. 2003 Oct 1;42(28):5737-43. doi: 10.1364/ao.42.005737.
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.
据预测，视网膜神经纤维层（RNFL）反射率的衰减光谱强烈依赖于光散射圆柱体的相对折射率（m）。为了确定m的值，使用多光谱成像微偏振计测量了分离的大鼠视网膜RNFL反射率的衰减。RNFL反射在所有波长（400 - 830 nm）下具有非常弱的固有衰减，这排除了所有m≥1.03的值。还测量了RNFL反射的偏振度（DOP）。在所有波长下DOP都接近1，这表明RNFL是一个保偏反射器。
