Bright Light Therapy for Major Depressive Disorder in Adolescent Outpatients: A Preliminary Study

Area of Science:

• Psychiatry
• Adolescent Health
• Chronobiology

Background:

• Bright light therapy (BLT) is understudied in adolescents with major depressive disorder, especially in outpatient settings.
• Adolescent depression requires accessible and effective treatment options.

Purpose of the Study:

• To evaluate the feasibility, acceptability, and efficacy of BLT for adolescents with moderate to severe depression in a primary care setting.
• To assess the impact of BLT on mood and sleep patterns in this population.

Main Methods:

• An 8-week clinical trial involving adolescents recruited from a primary care practice.
• Assessed feasibility and acceptability through daily light box use and routine integration.
• Measured treatment effects using the Short Mood and Feelings Questionnaire (SMFQ) and actigraphic sleep variables.

Main Results:

• High adherence rates were observed, with participants integrating midday BLT more easily than morning sessions.
• Significant improvements in depression scores were noted during the BLT phase.
• Sleep efficiency increased significantly, with a trend towards decreased sleep onset latency.

Conclusions:

• Self-administered home-based BLT is a feasible, acceptable, and effective treatment for adolescent outpatients with depression.
• Findings support further large-scale, controlled clinical trials of BLT in primary care settings.