Mueller matrix retinal imager with optimized polarization conditions.
A new Mueller matrix polarimeter was used to image the retinas of normal subjects. Light from a linearly polarized 780 nm laser was passed through a system of variable retarders and scanned across the retina. Light returned from the eye passed through a second system of retarders and a polarizing beamsplitter to two confocal detection channels. Optimization of the polarimetric data reduction matrix was via a condition number metric. The accuracy and repeatability of polarization parameter measurements were within +/- 5%. The magnitudes and orientations of retardance and diattenuation, plus depolarization, were measured over 15 degrees of retina for 15 normal eyes.
Twietmeyer
K M
KM
University of Arizona College of Optical Sciences, 1630 E. University Boulevard, Tucson, Arizona 85721, USA. karen.twietmeyer@yahoo.com
Chipman
R A
RA
Elsner
A E
AE
Zhao
Y
Y
VanNasdale
D
D
D000465:Algorithms; D002138:Calibration; D003952:Diagnostic Imaging / Q000379:methods; D003941:Diagnostic Techniques, Ophthalmological; D004867:Equipment Design; D006801:Humans; D008027:Light; D008859:Microscopy, Polarization / Q000379:methods; D015233:Models, Statistical; D009799:Ocular Physiological Phenomena; D009900:Optic Nerve / Q000033:anatomy & histology; D055095:Optics and Photonics; D015203:Reproducibility of Results; D012160:Retina / Q000033:anatomy & histology* / Q000502:physiology*; D014785:Vision, Ocular