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Ocular adhesives: Design, chemistry, crosslinking mechanisms, and applications.

  • Author(s): Trujillo-de Santiago, Grissel
  • Sharifi, Roholah
  • Yue, Kan
  • Sani, Ehsan Shrizaei
  • Kashaf, Sara Saheb
  • Alvarez, Mario Moisés
  • Leijten, Jeroen
  • Khademhosseini, Ali
  • Dana, Reza
  • Annabi, Nasim
  • et al.
Abstract

Closure of ocular wounds after an accident or surgery is typically performed by suturing, which is associated with numerous potential complications, including suture breakage, inflammation, secondary neovascularization, erosion to the surface and secondary infection, and astigmatism; for example, more than half of post-corneal transplant infections are due to suture related complications. Tissue adhesives provide promising substitutes for sutures in ophthalmic surgery. Ocular adhesives are not only intended to address the shortcomings of sutures, but also designed to be easy to use, and can potentially minimize post-operative complications. Herein, recent progress in the design, synthesis, and application of ocular adhesives, along with their advantages, limitations, and potential are discussed. This review covers two main classes of ocular adhesives: (1) synthetic adhesives based on cyanoacrylates, polyethylene glycol (PEG), and other synthetic polymers, and (2) adhesives based on naturally derived polymers, such as proteins and polysaccharides. In addition, different technologies to cover and protect ocular wounds such as contact bandage lenses, contact lenses coupled with novel technologies, and decellularized corneas are discussed. Continued advances in this area can help improve both patient satisfaction and clinical outcomes.

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