휴대용 안압 측정을 비전 센서 기반 정렬 시스템 개발
Abstract
Elevated intraocular pressure(IOP) is a primary cause of glaucoma, rendering IOP measurement essential for diagnosis. Traditional IOP measurement devices are bulky and stationary, necessitating movement between consultation and measurement rooms. Portable tonometers address this issue but face challenges in ensuring proper alignment between the cornea and the device for precise measurements. This study proposes a method enabling medical professionals or third parties to determine this alignment using a portable tonometer. The proposed alignment system is designed considering structural compactness and cost competitiveness and comprises three light sources and vision sensors. To validate the proposed system, experiments were conducted, proving its ability to determine the alignment between the cornea and the system.
Keywords:
Active senior, Glaucoma, Intraocular pressure, Non-contact tonometer, Alignment systemAcknowledgments
본 연구는 2024년도 교육부의 재원으로 한국연구재단의 지원을받아 수행된 지자체-대학 협력기반 지역혁신 사업의 결과입니다(2022RIS-005).
References
-
Kim, H. W., Zhang, X., Kim, Y. S., Jung, I. H., 2022, Comparison of the Performance of CNN Models for Retinal Diseases Diagnosis, Journal of Korean Institute of Intelligent Systems, 32:1 51-60.
[https://doi.org/10.5391/JKIIS.2022.32.1.51]
- Lee, S. K., Kim, S. K., 2005, Detection of the Optic Disk Boundary in Retinal Images Using Inward and Outward Curve Evolution, The Journal of the Korea Contents Association, 5:6 138-145.
- Kim, M. S., Woo, S. Y., Lee, S., Park, Y. K., 2007, Tonometry and Its Standards, J. Korean Soc. Precis. Eng., 24:9 17-22.
-
Tojo, N., Oka, M., Miyakoshi, A., Ozaki, H., Hayashi, A., 2014, Comparison of Fluctuations of Intraocular Pressure before and after Selective Laser Trabeculoplasty in Normal-tension Glaucoma Patients, J. Glaucoma, 23:8 138-143.
[https://doi.org/10.1097/IJG.0000000000000026]
- Collins, R., Van der Werff, T. J.., 2013, Mathematical Models of the Dynamics of the Human Eye, Springer, New York.
-
Goel, M., Picciani, P. G., Lee, R. K., Bhattacharya, S. K., 2010, Aqueous Humor Dynamics: A Review, Open Ophthalmol. J., 4 52-59.
[https://doi.org/10.2174/1874364101004010052]
- Stevens, S., Gilbert, C., Astbury, N., 2007, How to Measure Intraocular Pressure: Applanation Tonometry, Community Eye Health, 20:64 74-75.
- Northrop, R. B., 2002, Noninvasive Instrumentation and Measurement in Medical Diagnosis, CRC Press, Boca Raton.
-
Touboul, D., Roberts, C., Kerautret, J., Garra, C., Maurice-Tison, S., Saubusse, E., Colin, J., 2008, Correlations between Corneal Hysteresis, Intraocular Pressure, and Corneal Central Pachymetry, J. Cataract. Refract. Surg., 34:4 616-622.
[https://doi.org/10.1016/j.jcrs.2007.11.051]
-
Nakao, Y., Kiuchi, Y., Okimoto, S., 2017, A Comparison of the Corrected Intraocular Pressure Obtained by the Corvis ST and Reichert 7CR Tonometers in Glaucoma Patients, PLoS One, 12:1 e0170206.
[https://doi.org/10.1371/journal.pone.0170206]
-
Ulvik, S. O., Seland, J. H., Wentzel-Larsen, T., 2005, Refraction, Axial Length and Age-related Maculopathy, Acta Ophthalmol. Scand., 83:5 419-423.
[https://doi.org/10.1111/j.1395-3907.2005.520_corr.x]
-
Fledelius, H. C., 1988, Refraction and Eye Size in the Elderly: A Review based on Literature, Including Own Results, Acta Ophthalmol., 66:3 241-248.
[https://doi.org/10.1111/j.1755-3768.1988.tb04592.x]
-
Piñero, D. P., Puche, A. B. P., Alió, J. L., 2008, Corneal Diameter Measurements by Corneal Topography and Angle-to-angle Measurements by Optical Coherence Tomography: Evaluation of Equivalence, J. Cataract. Refract. Surg., 34:1 126-131.
[https://doi.org/10.1016/j.jcrs.2007.10.010]
-
Khng, C., Osher, R. H., 2008, Evaluation of the Relationship between Corneal Diameter and Lens Diameter, J. Cataract. Refract. Surg., 34:3 475-479.
[https://doi.org/10.1016/j.jcrs.2007.10.043]
- Kim, H. J., 2016, Development of Non-contact type Intraocular Pressure Measurement System based on Rebounding Sound and Air-pressure, Doctorate Thesis, Kangwon National University, South Korea.
Ph.D. Candidate in the Department of Smart Health Science and Technology, Kangwon National University. His research interest is Precision Control of Feed Derive System.
E-mail: didantm@kangwon.ac.kr
Master Candidate in the Department of Smart Health Science and Technology, Kangwon National University. Her research interest is Cancer Immunotherapy.
E-mail: luna1223@kangwon.ac.kr
Master Candidate in the Department of Smart Health Science and Technology, Kangwon National University. Her research interest is Nano Bio Engineering.
E-mail: tlsthwls47@kangwon.ac.kr
Master Candidate in the Department of Smart Health Science and Technology, Kangwon National University. His research interest is Physical Training.
E-mail: koreahoke@naver.com
President in C&VTech Co., Ltd.. His research interest is Eye Health.
E-mail: ceo@cnvtech.co.kr
Post-doctoral Associate in the Department of Smart Health Science and Technology, Kangwon National University. His research interest is Micro/Nano Scale Surface Texturing Technologies and Digital Twin.
E-mail: wkddndrl@kangwon.ac.kr
Professor in the Department of Smart Health Science and Technology, Kangwon National University. His research interest is Nano Bio Engineering.
E-mail: kimhoman@kangwon.ac.kr
Professor in the Department of Smart Health Science and Technology, Kangwon National University. His research interest is Drug Delivery System.
E-mail: kslim@kangwon.ac.kr
Professor in the Department of Smart Health Science and Technology, Kangwon National University. His research interest is Physiology & Physical Training.
E-mail: phd.football@gmail.com
Professor in the Department of Smart Health Science and Technology, Kangwon National University. His research interest is Micro and Nano System Design and Precision Control of Machine Tools.
E-mail: kbh@kangwon.ac.kr
Physician in the Department of Rehabilitation Medicine, Kangwon National University Hospital. His research interest is Rehabilitation Medicine.
E-mail: HWPARK@kangwon.ac.kr