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Jung, Woonggyu
Translational Biophotonics Lab.
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Lamellar keratoplasty using position-guided surgical needle and M-mode optical coherence tomography

Author(s)
Shin, SungwonBae, Jung KweonAhn, YujinKim, HyeongeunChoi, GeonhoYoo, Young-SikJoo, Choun-KiMoon, SucbeiJung, Woonggyu
Issued Date
2017-12
DOI
10.1117/1.JBO.22.12.125005
URI
https://scholarworks.unist.ac.kr/handle/201301/23061
Fulltext
https://www.spiedigitallibrary.org/journals/journal-of-biomedical-optics/volume-22/issue-12/125005/Lamellar-keratoplasty-using-position-guided-surgical-needle-and-M-mode/10.1117/1.JBO.22.12.125005.full
Citation
JOURNAL OF BIOMEDICAL OPTICS, v.22, no.12, pp.125005
Abstract
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.
Publisher
SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
ISSN
1083-3668
Keyword (Author)
medical imaging probesurgical guidanceophthalmologydeep anterior lamellar keratoplastyM-mode optical coherence tomography
Keyword
BIG-BUBBLE TECHNIQUEPENETRATING KERATOPLASTYDESCEMETS-MEMBRANEIMAGING NEEDLEDEEPKERATOCONUSTOOLOCTVISUALIZATIONDISSECTION

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