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In Journal of biomedical optics ; h5-index 0.0

Corneal thickness (CoT) is an important tool in the evaluation process for several disorders and in the assessment of intraocular pressure. We present a method enabling high-precision measurement of CoT based on secondary speckle tracking and processing of the information by machine-learning (ML) algorithms. The proposed configuration includes capturing by fast camera the laser beam speckle patterns backscattered from the corneal-scleral border, followed by ML processing of the image. The technique was tested on a series of phantoms having different thicknesses as well as in clinical trials on human eyes. The results show high accuracy in determination of eye CoT, and implementation is speedy in comparison with other known measurement methods.

Bennett Aviya, Davidovitch Elnatan, Beiderman Yafim, Agadarov Sergey, Beiderman Yevgeny, Moshkovitz Avital, Polat Uri, Zalevsky Zeev

2019-12

corneal thickness, imaging, lasers, machine learning, optics, secondary speckle patterns