| Home | E-Submission | Sitemap | Contact Us |  
J Korean Sleep Res Soc > Volume 2(1); 2005 > Article
J Korean Sleep Res Soc. 2005;2(1):47-50.         doi: https://doi.org/10.13078/jksrs.05008
수면위상지연증후군에서 광치료의 효과
윤동주, 주은연, 한선정, 최수정, 홍승봉
성균관대학교 의과대학 신경과학교실
Effects of light therapy on patients with delayed sleep phase syndrome
Dong Joo Yun, Eun Yeon Joo, Sun Jung Han, Su Jung Choi, Seung Bong Hong
Department of Neurology, Sleep Disorders Clinic, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
Corresponding Author: Seung Bong Hong ,Tel: +82-2-3410-3592, Fax: +82-2-3410-0052, Email: sbhong@smc.samsung.co.kr
Received: June 5, 2005   Accepted: June 14, 2005   Published online: June 30, 2005
Share :  
Background : Light therapy (LT) is a potent tool for the treatment of circadian rhythm sleep disorder. We present the method and treatment effect of LT in patients with delayed sleep phase syndrome (DSPS). Methods : We enrolled 11 patients (M:F=4:7). Eleven of them had DSPS. Two of them who had post-encephalitic epilepsy were dropped out because they showed photosensitive seizures to LT. Thus the remaining 9 patients received LT with a bright light box for consecutive 7-10 days. The patients sit in front of a “light box”, which emits 10,000 lux of full spectrum fluorescent light for the periods of 30-45 minutes daily in the morning right after wake-up. Light was restricted by reducing room light for 1hour before light-off at bedtime. The timing of LT was readjusted everyday to the scheduled wake-up time of each day. Results : By the LT, the average bedtime was advanced from 02:30 a.m. (range; 01:30-5:50 a.m.) to 23:15 p.m. (range; 22:00-23:50 p.m.) and the average wake-up time from 11:30 a.m. (range; 9:20 a.m.-2:30 p.m.) to 7:50 a.m. (range; 7:20-8:30 a.m.). All patients have maintained the readjusted bedtime and wake-up time schedules for 3.8±2.4 months without additional light therapy. No adverse events of LT were observed.
Conclusion : A short-term LT was able to advance a delayed sleep phase and the advancement of sleep phase has been maintained for more than 3 months.
Keywords: Light therapy | Delayed sleep phase syndrome | Circadian rhythm sleep disorder
Editorial Office
Joong-Ang Bldg., 18-8, Wonhyo-ro 89 Gil, Yonsan-gu, Seoul 04314, Republic of Korea
Tel: +82-2-717-5114   Fax: +82-2-717-5515   E-mail: jsleepmed@e-jsm.org

Copyright© Korean Sleep Research Society.                Developed in M2PI
About |  Browse Articles |  Current Issue |  For Authors and Reviewers