Journal List > J Korean Neuropsychiatr Assoc > v.54(4) > 1017781

Cheong, Kim, and Lee: A Case of Bright Light Therapy in a Treatment Resistant Patient with Major Depressive Disorder


The light therapy has been known to be effective to non-seasonal affective disorder as well as seasonal affective disorder. Although the mechanism of action of light therapy for depressive disorder has not been verified yet, its clinical application revealed similar effects like antidepressants and relatively smaller side effects. However, it is not common to apply the light therapy for treatment resistant depressive disorder. This case report indicates a robust efficacy of light therapy and its clinical usefulness, illustrating the complete remission in a treatment resistant patient with major depressive disorder after bright light therapy.

Figures and Tables

Fig. 1

Salivary melatonin profile of the patient before light therapy. Dim light melatonin onset was at 9:12 pm.

Table 1

Pharmacotherapy for the patient before light therapy



Conflicts of Interest The authors have no financial conflicts of interest.


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