Fabrication of ophthalmic lenses by Fluidic Shaping
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Published version
Date
2025-07
Version
Published version
OA Version
Citation
M. Elgarisi, O. Luria, Y. Katzman, D. Widerker, V. Frumkin, M. Bercovici. 2025. "Fabrication of ophthalmic lenses by Fluidic Shaping" Additive Manufacturing, Volume 109, pp.104871-104871. https://doi.org/10.1016/j.addma.2025.104871
Abstract
Limited access to corrective eyewear remains a significant medical, societal, and economic challenge in developing countries, with more than 1 billion people suffering from uncorrected vision impairment. Philanthropy has failed to meet the demand, and local manufacturing using standard technologies remains beyond reach due to
inadequate resources. We present a fluidic approach, leveraging the surface tension of liquid polymers, with which high-quality solid lenses, with any prescription, can be created without machining, polishing or any postprocessing steps. We provide an experimentally-validated analytical model relating the geometrical degrees of freedom to the desired prescription. Using a compact low-power device, we demonstrate that the fluidic
approach allows the fabrication of industry-standard eyeglasses in several minutes, opening the door to advanced manufacturing in low-resource settings.
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License
© 2025 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).