Low-cost eye phantom for stereophotogrammetry-based optic nerve head topographical 3D imaging

Coghill, Ian and Black, Richard A. and Livingstone, Iain A. T. and Giardini, Mario E.; (2020) Low-cost eye phantom for stereophotogrammetry-based optic nerve head topographical 3D imaging. In: 2020 42nd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC). IEEE, CAN, pp. 1604-1607. ISBN 9781728119908 (https://doi.org/10.1109/EMBC44109.2020.9175326)

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Abstract

Glaucoma is the second leading cause of blindness globally. Stereophotogrammetry-based optic nerve head topographical imaging systems could potentially allow for objective glaucoma assessment in settings where technologies such as optical coherence tomography and the Heidelberg Retinal Tomograph are prohibitively expensive. In the development of such systems, eye phantoms are invaluable tools for both system calibration and performance evaluation. Eye phantoms developed for this purpose need to replicate the optical configuration of the eye, the related causes of measurement artefacts, and give the possibility to present to the imaging system the targets required for system calibration. The phantoms in the literature that show promise of meeting these requirements rely on custom lenses to be fabricated, making them very costly. Here, we propose a low-cost eye phantom comprising a vacuum formed cornea and commercially available stock bi-convex lens, that is optically similar to a gold-standard reference wide-angle schematic eye model and meets all the compliance and configurability requirements for use with stereo-photogrammetry-based ONH topographical imaging systems. Moreover, its modular design, being fabricated largely from 3D-printed components, lends itself to modification for other applications. The use of the phantom is successfully demonstrated in an ONH imager.

  • Item type:Book Section
    ID code:72203
    Dates:
    Date
    Event
    27 August 2020
    Published
    24 July 2020
    Published Online
    23 April 2020
    Accepted
    Notes:© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Subjects:Technology > Engineering (General). Civil engineering (General) > Bioengineering
    Department:Faculty of Engineering > Biomedical Engineering
    Strategic Research Themes > Health and Wellbeing
    Depositing user: Pure Administrator
    Date deposited:29 Apr 2020 13:44
    Last modified:08 Apr 2024 14:01
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/72203
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