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Progressive Insights into 3D Bioprinting for Corneal Tissue Restoration
Ilayda Namli1,2, Deepak Gupta1,2, Yogendra Pratap Singh1,2,3
1The Huck Institutes of the Life Sciences, Penn State University, University Park, PA, 16802, USA.
Advanced Healthcare Materials
|September 26, 2025
Summary
3D bioprinting precisely fabricates corneal tissues, mimicking native structure for vision restoration. This review explores 3D bioprinting methods, bioink requirements, challenges, and future innovations for corneal regeneration.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Ophthalmology
Background:
- The cornea's intricate structure presents challenges for traditional tissue engineering.
- 3D bioprinting offers precise fabrication of corneal tissues, crucial for vision restoration.
Purpose of the Study:
- To critically examine the biomechanical, optical, and structural attributes for corneal engineering.
- To review 3D bioprinting modalities and bioink requirements for corneal tissue.
- To explore challenges, solutions, and innovative approaches in corneal bioprinting.
Main Methods:
- Review of current literature on 3D bioprinting for corneal tissue engineering.
- Analysis of biomechanical, optical, and structural requirements for engineered cornea.
- Exploration of advanced techniques like stem cells, gene therapy, and organ-on-a-chip.
Main Results:
- 3D bioprinting enables layer-by-layer fabrication mimicking corneal architecture.
- Key requirements for corneal bioinks ensuring native function are detailed.
- Innovative strategies and potential solutions for overcoming current challenges are identified.
Conclusions:
- 3D bioprinting holds significant promise for corneal regeneration and addressing donor shortage.
- Integration with stem cells and gene therapy can advance corneal tissue engineering.
- Bioprinted corneal implants offer potential for improved patient outcomes and clinical application.
