Publication: Dynamic accommodation measurement using Purkinje reflections and ML algorithms
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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 25cm to infinity (>4 diopters) with better than 0,25D accuracy. We performed repeatability tests and obtained accurate gaze and accommodation estimations using 15 subjects. We are generating a large synthetic data set using physically accurate models and machine learning algorithms.
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SPIE-Int Soc Optical Engineering
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Engineering, biomedical, Ophthalmology
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Ophthalmic Technologies XXXIII
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10.1117/12.2651657