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Which destructive consequence affects endoscope image quality during insertion?

A)Reduced fringe visibility from pathlength errors
B)Increased coherent backscattering around the focal point
C)Chromatic blurring due to index variations
D)Increased spherical aberration from GRIN lens

💡 Explanation

Reduced fringe visibility is a known issue using white light interferometry within endoscopes because varying tissue depths cause interference pathlength errors. This affects image quality because coherence between beams decreases, therefore fringes become blurred, rather than providing sharp details under ideal conditions.

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