Bright light treatment added to regular care in non-seasonal major depression: results from doctor-rated depression scores

Reduction in depression scores was statistically significantly larger in the bright light group compared to the dim light group.

• 102 patients were treated with either bright light or dim light along with sertraline.
• Bright light therapy involved exposure to 10,000 lux for 1 hour daily, while dim light was 50 lux for 30 minutes daily.
• All depression scales showed greater improvement in the bright light group compared to the dim light group.
• The Hamilton six-item subscale (HAM-D6) was the most sensitive measure at the study's endpoint.

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