Derivation of lenticular transmittance from fluorophotometry.

摘要: Purpose To derive transmittance spectra for the human lens using ratio between posterior and anterior autofluorescence of as measured by fluorophotometry. Methods Transmittance can be described with a one-parameter model to high degree accuracy. The parameter m this defines differences individuals. In fluorophotometry literature another related transmittance, T, has been defined square root lenticular autofluorescence. T predicted from m, given excitation light, fluorescence emitted detecting device are known, assuming that efficiencies equal. When relation is inverted, derived giving complete spectrum on basis T. Results A transformation curve was calculated determine vice versa. light function validity approach evaluated an independent method assessment transmittance. This consisted making color slitlamp slides, grading observed these slides LOCS III NC system, transforming grades into published curves. Conclusions total reliably fluorophotometric scan lens.