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    Remote measurement of sphero-cylindrical lens power and orientation through distortion analysis

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    Author
    Schwiegerling, J.
    Guan, Y.
    Miller, J.M.
    Harvey, E.M.
    Affiliation
    James C. Wyant College of Optical Sciences, University of Arizona
    Dept. of Ophthalmology and Vision Sciences
    Issue Date
    2021
    Keywords
    Image processing
    Power measurement
    Spectacle lenses
    Telemedicine
    
    Metadata
    Show full item record
    Publisher
    SPIE
    Citation
    Schwiegerling, J., Guan, Y., Miller, J. M., & Harvey, E. M. (2021). Remote measurement of sphero-cylindrical lens power and orientation through distortion analysis. Proceedings of SPIE - The International Society for Optical Engineering.
    Journal
    Proceedings of SPIE - The International Society for Optical Engineering
    Rights
    Copyright © 2021 SPIE.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    A system for measuring the orientation and power of sphero-cylindrical lenses has been developed. The system attempts to minimize the need for specialized equipment and training and instead relies on the ubiquitous cell phone camera, a magnetic stripe card, and a target pattern. By capturing an image of the target through the lenses under test and analyzing the distortion in the resulting image, the orientation and powers on sphero-cylindrical lenses can be determined. In modern eye clinics, the measurement of sphero-cylindrical spectacle lenses is readily measured with a lensmeter. However, there are many examples where this measurement is not feasible. This may include remote or rural locations where access to eye care may not exist, or require impractical travel. Furthermore, the on-going global pandemic has often put restrictions on contact between the patient and the eye care provider. Telemedicine, which can connect patients to eye care providers, lacks physical access to the spectacles for measurement. The system developed in this effort overcomes this limitation by allowing remote measurement of the lenses with items found in most households. Such a system would be beneficial to often underserved populations and expand access to quality eye care. © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.
    Note
    Immediate access
    ISSN
    0277-786X
    ISBN
    9781510644687
    DOI
    10.1117/12.2594953
    Version
    Final published version
    ae974a485f413a2113503eed53cd6c53
    10.1117/12.2594953
    Scopus Count
    Collections
    UA Faculty Publications

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