Using Pupil Apodization as an Optical Technique to Obtain Retina Light Distributions in Presence of Stiles-Crawford Effect of the First Kind
نویسندگان
چکیده
In Stiles-Crawford effect of the first kind (SCE I) a beam of light entering from the edge of the pupil fails to elicit the same visual response compared to a beam hitting the pupil head-on. This effect is employed as an optical technique of pupil apodization in obtaining the retinal light distributions for a human eye. The novelty in this methodology centers on the simultaneous use of spatially coherent entering light and a triangular transmission profile as periodic target. It is found that unlike the modifications reported before in the modulation for incoherent illumination, almost no changes is observed in the modulation for a full pupil admitting coherent beams. This is in agreement with recent experiments performed using liquid crystal spatial light modulator and scanning laser ophthalmoscope. But our theoretical analysis has rich potential of showing how the coherence in the entering beam can be used as an optical tool to manipulate the spatial distribution of photon absorption in the photoreceptors of a human eye.
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