• 정신신체의학
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• 제8권1호
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• pp.103-109
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• 2000

저자들은 만성적인 피로감과 비특이적인 신체 증상을 나타내는 치료저항성 만성피로증후군 환자 1례를 경험하였다. 몇몇 연구들에서 만성피로증후군과 정서장애와의 관련성을 보고하고 있으나 계절성정서장에의 치료 도구로 인정받고 있는 만성피로증후군에서 광치료의 효용성에 대한 연구는 거의 없는 상태이다. 저자들은 2500lux의 광상자를 이용하여 본 증례의 환자에게 아침 광치료를 시도하여 임상적 증상의 호전을 경험하였기에 관련 문헌의 검토와 함께 보고하고자 한다.

• 수면정신생리
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• 제5권2호
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• pp.170-176
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• 1998

Nowadays light therapy is accepted practice in the treatment for Seasonal Affective Disorder. The author reviewed the practical aspects of light therapy, latest treatment research on optimal parameters of light therapy and the mechanisms of action of light therapy. Therapeutic efficacy of light therapy using light visors & dawn simulators has been suggested but further studies are needed to clarify the efficacy. The treatment most strongly supported by research studies is light therapy using a light box to administer bright white light (2500 lux for 2 hours or 10000 lux for 30 minutes). Although some patients may be selective responders to morning light exposure, the optimal timing of light exposure still remains controversial. In practice, generally the duration of exposure can be increased or decreased as necessary and also the timing of exposure can be splitted (e.g. AM/PM usage) if optimal response is obtained. For most, a positive response of light therapy is usually noted within $4{\sim}5\;days$ and optimal response is obtained within 2 weeks. Generally the relapse of symptom occurs within days of discontinuation of light therapy, so to prevent relapse, light therapy should be continued throughout the winter season for typical seasonal affective disorder. Side effects of light therapy appear to be mild and well tolerated. Several theories for the mechanisms of action of light therapy at the basis of seasonal affective disorder had been suggested but remain still controversial. Further studies on the optimal parameters and the mechanisms of light therapy help us to better understand and treat not only seasonal affective disorders but also chronobiological disorders and nonseasonal affective disorders.