Korean Journal of Optometry and Vision Science 2014;13(2):53-58.
Published online December 31, 2014.
전안부 빛간섭단층촬영계를 이용한 연성콘택트렌즈의 산소투과율에 따른 중심각막두께 변화 비교
송미령, 채민병, 황제형, 김태진
인제대학교 의과대학 상계백병원 안과학교실1,
미래안과2
Comparison of Corneal Thickness According to Oxygen Transmissibility of Contact Lenses Measured by Anterior Segment Optical Coherence Tomography
Miryoung Song, Minbyung Chae, Je-hyung Hwang, Tae Jin Kim
Department of Ophthalmology, Sanggye Paik Hospital, Inje University College of Medicine1, Seoul, Korea
Mirae Eye Clinic2, Gwangmyeong, Korea
Received: 27 August 2014   • Revised: 19 October 2014   • Accepted: 24 October 2014
Abstract
Purpose: With anterior segment optical coherence tomography(OCT), changes of central corneal thickness should be compared by contact lens' oxygen transmissibility when wearing different soft contact lens under the corneal hypoxic and closed-eye condition.
Methods: Control group is eyes which don't wear lens for 30 healthy adults. They wore lens with low oxygen transmissibility (Lens A) and lens with high oxygen transmissibility (Lens B). Central corneal thickness was measured by anterior segment OCT every 30 minutes maintained closed-eye during 120 minutes.
Results: There was no significant change among the three groups for the changes of epithelial thickness. But, in the changes of stromal thickness, Lens A group was increased in comparison with other two groups and showed statistically significant increase of about 1% every 30 minutes (p < 0.05). In changes of the whole corneal thickness, Lens A group showed significant increase in comparison with other two groups and there was no significant difference between Lens B group and control group. In the final changing rate of the central corneal thickness, Lens A group was 5.07 ± 3.06% and Lens B group was 2.68 ± 1.67%. Lens A group showed more significant increased than Lens B group.
Conclusions: Under the hypoxic condition, when wearing lens with low oxygen transmissibility for 120 minutes, central corneal thickness showed significant increase. And, usages of anterior segment OCT should be gradually increased for several diseases of various purposes because it can grasp with the whole anterior video under the condition wearing lens.
Key Words: Anterior segment optical coherence tomography, Central corneal thickness, Oxygen transmissibility, Soft contactlens
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