Journal of the Korean Ophthalmological Society 1989;30(6):887-892.
Published online June 1, 1989.
Influence of Soft Contact lens on Tear Excretion Measured with lacrimal Scintillography.
Byung Joo Song, Joon Kiu Choe, Suk Shin Cho
1Department of Ophthalmology, School of Medicine, Hanyang University, Seoul, Korea.
2Department of Nuclear Medicine, School of Medicine, Hanyang University, Seoul, Korea.
누 주사상을 이용한 연성 콘택트렌즈 착용전후의 누액배출비의 변화
송병주(Byung Joo Song),최준규(Joon Kiu Choe),조석신(Suk Shin Cho)
Abstract
In order to evaluate the influence of soft contact lens(SCL) on the tear turnover rate in the conjunctival sac with SCL, this study was performed with lacrimal scintillography. Two determinations were carried out in the same eye: the first determination was carried out in both eyes without SCL(control group) and the second determination was carried out in both eyes after adaptation to the SCL from 4 hours to 8 hours only in the left eye(study group). In the results, there was no statistical difference of the fractional turnover rate of the tear between both eyes without SCL. In left eyes, the fractional tunover rate of the study group was significantly lower than that of the control group, because the accumulation of the Technetium 99m sodium pertechnetate in the SCL. In right eyes, there was no statistical difference of the fractional turnover rate of the tear between the control group and the study group. This result may be derived from 'fatigue block' and/or the decreased sensitivity of the cornea fitted with SCL.
Key Words: lacrimal scintillography;soft contact lens;tear turnover rate


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