Prospects for Additive Manufacturing in Contact Lens Devices

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  • Fahad Alam
    Department of Mechanical Engineering Khalifa University of Science and Technology 127788 Abu Dhabi United Arab Emirates
  • Mohamed Elsherif
    Department of Mechanical Engineering Khalifa University of Science and Technology 127788 Abu Dhabi United Arab Emirates
  • Bader AlQattan
    Department of Mechanical Engineering Khalifa University of Science and Technology 127788 Abu Dhabi United Arab Emirates
  • Murad Ali
    Department of Mechanical Engineering Khalifa University of Science and Technology 127788 Abu Dhabi United Arab Emirates
  • Israr Muhammad Gulzar Ahmed
    Department of Mechanical Engineering Khalifa University of Science and Technology 127788 Abu Dhabi United Arab Emirates
  • Ahmed Salih
    Department of Mechanical Engineering Khalifa University of Science and Technology 127788 Abu Dhabi United Arab Emirates
  • Dennyson Savariraj Antonysamy
    Department of Mechanical Engineering Khalifa University of Science and Technology 127788 Abu Dhabi United Arab Emirates
  • Ali K. Yetisen
    Department of Chemical Engineering Imperial College London London SW7 2AZ UK
  • Seongjun Park
    Department of Bio and Brain Engineering Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
  • Haider Butt
    Department of Mechanical Engineering Khalifa University of Science and Technology 127788 Abu Dhabi United Arab Emirates

Description

<jats:sec><jats:label /><jats:p>Additive manufacturing (3D printing) has the ability to architect structures at microscale, giving rise to the development of functional contact lenses (CLs) with inbuilt sensing capabilities. 3D printing technology enables fabrication of CLs without surface geometry restrictions. Spherical, nonspherical, symmetric, and asymmetric lenses can be manufactured in an integrated production process. Advantages of 3D printing over conventional techniques include fast and easy production, one‐step manufacturing, and no post processing such as grinding or polishing. In addition, and most significantly, 3D printing can create chambers within the wall of the lenses by taking the advantage of computer‐aided modeling and layer‐by‐layer deposition of the materials. These inbuilt chambers can be used for loading drugs and sensing elements. The computer‐aided design modeling can allow for manufacturing of patient‐specific CLs. This article focuses on the 3D‐printing approaches and the challenges faced in fabricating CLs. 3D‐printing technology as a technique for manufacturing of CLs is discussed, in addition to the manufacturing challenges and the possible solutions to overcome the obstacles.</jats:p></jats:sec>

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