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Dynamic accommodation measurement using Purkinje reflections and ML algorithms

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arxiv 2304.01296 v2 pith:RDZT2B74 submitted 2023-04-03 physics.med-ph cs.LGq-bio.QM

classification physics.med-phcs.LGq-bio.QM
keywords accommodationaccurategazedevelopeddynamicmeasurementsmodelpurkinje
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We developed a prototype device for dynamic gaze and accommodation measurements based on 4 Purkinje reflections (PR) suitable for use in AR and ophthalmology applications. PR1&2 and PR3&4 are used for accurate gaze and accommodation measurements, respectively. Our eye model was developed in ZEMAX and matches the experiments well. Our model predicts the accommodation from 4 diopters to 1 diopter with better than 0.25D accuracy. We performed repeatability tests and obtained accurate gaze and accommodation estimations from subjects. We are generating a large synthetic data set using physically accurate models and machine learning.

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