Inclusion criteria | Moderate to severe depression (ICD-10/BDI-II) |
Being 12 to 18Â years of age | |
Ability to understand character and individual consequences of the trial | |
Written informed consent of the person with primary custody must be available before enrolment in the trial | |
Exclusion criteria | Acute suicidal tendencies |
Treatment with antidepressants | |
Treatment with beta-blockers | |
Treatment with high-potency neuroleptic drugs | |
Diagnosis of bipolar 1 disorder or schizophrenia | |
Diseases of the eye with involvement of the retina | |
Pregnancy or lactation |