Lamellar keratoplasty using position-guided surgical needle and M-mode optical coherence tomography
| Autor: | Woonggyu Jung, Sungwon Shin, Yujin Ahn, Sucbei Moon, Young-Sik Yoo, Choun-Ki Joo, Hyeongeun Kim, Geonho Choi, Jung Kweon Bae |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
genetic structures Biomedical Engineering Lamellar keratoplasty 01 natural sciences Cornea Corneal Transplantation 010309 optics Biomaterials 03 medical and health sciences 0302 clinical medicine Optical coherence tomography 0103 physical sciences medicine Humans Surgical microscope medicine.diagnostic_test 3d image processing eye diseases Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials medicine.anatomical_structure Needles 030221 ophthalmology & optometry Syringe needle sense organs Tomography Optical Coherence Biomedical engineering |
| Zdroj: | Journal of Biomedical Optics. 22:1 |
| ISSN: | 1083-3668 |
| DOI: | 10.1117/1.jbo.22.12.125005 |
| Popis: | Deep anterior lamellar keratoplasty (DALK) is an emerging surgical technique for the restoration of corneal clarity and vision acuity. The big-bubble technique in DALK surgery is the most essential procedure that includes the air injection through a thin syringe needle to separate the dysfunctional region of the cornea. Even though DALK is a well-known transplant method, it is still challenged to manipulate the needle inside the cornea under the surgical microscope, which varies its surgical yield. Here, we introduce the DALK protocol based on the position-guided needle and M-mode optical coherence tomography (OCT). Depth-resolved 26-gage needle was specially designed, fabricated by the stepwise transitional core fiber, and integrated with the swept source OCT system. Since our device is feasible to provide both the position information inside the cornea as well as air injection, it enables the accurate management of bubble formation during DALK. Our results show that real-time feedback of needle end position was intuitionally visualized and fast enough to adjust the location of the needle. Through our research, we realized that position-guided needle combined with M-mode OCT is a very efficient and promising surgical tool, which also to enhance the accuracy and stability of DALK. |
| Databáze: | OpenAIRE |
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