Journal
ACS BIOMATERIALS SCIENCE & ENGINEERING
Volume 7, Issue 2, Pages 794-803Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsbiomaterials.0c01470
Keywords
additive manufacturing; contact lenses; laser printing; nanopatterning; sensing
Categories
Funding
- Khalifa University of Science and Technology (KUST) [8474000211-FSU-2019-04]
- KU-KAIST Joint Research Center [8474000220-KKJRC-2019Health1]
- Sandooq Al Watan LLC [8434000391EX2020-044]
- Engineering and Physical Sciences Research Council (EPSRC) [EP/T013567/1]
- EPSRC [EP/T013567/1] Funding Source: UKRI
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The study demonstrated the fabrication of personalized smart contact lenses using additive manufacturing, which have built-in sensing capabilities through microchannels and holographic laser ablation. 3D printing allows for customized ophthalmic devices and integration with optical sensors.
Although the manufacturing processes of contact lenses are well established, the use of additive manufacturing for their fabrication opens many new possibilities to explore. The current study demonstrates the fabrication of personalized smart contract lenses utilizing additive manufacturing. The study includes 3-dimensional (3D) modeling of contact lenses with the assistance of a computer aided designing tool based on standard commercial contact lens dimension, followed by the selection of the suitable materials and 3D printing of contact lenses. The 3D printing parameters were optimized to achieve the desired lens geometries, and a post processing treatment was performed to achieve a smooth surface finish. The study also presents functionalized contact lenses with built-in sensing abilities by utilizing microchannels at the contact lens edges. Tinted contact lenses were printed and nanopatterns were textured onto the contact lens surfaces through holographic laser ablation. 3D printed contact lenses have advantages over conventional contact lenses, offering customized ophthalmic devices and the capability to integrate with optical sensors for diagnostics.
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