Journal of biomedical optics · 2017
Optical properties of the human round window membrane.
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Höhl Martin, DeTemple Daphne, Lyutenski Stefan, Leuteritz Georg, Varkentin Arthur, Schmitt Heike Andrea, Lenarz Thomas, Roth Bernhard, Meinhardt-Wollweber Merve, Morgner Uwe
Аннотация
Optical techniques are effective tools for diagnostic applications in medicine and are particularly attractive for the noninvasive analysis of biological tissues and fluids in vivo. Noninvasive examinations of substances via a fiber optic probe need to consider the optical properties of biological tissues obstructing the optical path. This applies to the analysis of the human perilymph, which is located behind the round window membrane. The composition of this inner ear liquid is directly correlated to inner ear hearing loss. In this work, experimental methods for studying the optical properties of the human round window membrane ex vivo are presented. For the first time, a comprehensive investigation of this tissue is performed, including optical transmission, forward scattering, and Raman scattering. The results obtained suggest the application of visible wavelengths (>400 nm) for investigating the perilymph behind the round window membrane in future.