Bright light therapy in focus: lamp emission spectra and ocular safety
| Autor: | Charlotte E. Remé, Michael Terman, Pascal O. Rol, Helmut Kaase, Knut Grothmann |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
Light therapy
Eye Diseases Light genetic structures Focus (geometry) Ultraviolet Rays medicine.medical_treatment Biomedical Engineering Biophysics Health Informatics Bioengineering Eye Biomaterials Eye Injuries Optics Reference Values medicine Humans Sleep phase Emission spectrum Circadian rhythm Bright light therapy Equipment Safety business.industry Seasonal Affective Disorder Phototherapy Spectral emission Optometry business Bright light Information Systems |
| Zdroj: | Technology and Health Care. 4:403-413 |
| ISSN: | 1878-7401 0928-7329 |
| DOI: | 10.3233/thc-1996-4405 |
| Popis: | In recent years, bright light treatment of seasonal affective disorder (SAD), recurrent depressions in fall and winter, has been discovered. Newer applications include circadian sleep phase disorder, shift work and jet lag. Apart from creating the visual signal, light can modify retinal structure and physiology. UV and visible light lead to distinct lesions of ocular tissues under certain experimental und naturalistic conditions. In light therapy, a large variety of fixtures is used but the spectral emission of lamps is mostly unknown to the user and clinician leading to the potential hazard of ocular lesions. Therefore, we have analyzed a wide selection of light sources commonly used for treatment. We measured the spectral emission and calculated irradiant doses for several light therapy regimens. Based on these measurements, potential hazards are analyzed, physiological mechanisms of light action are discussed and safety measures for bright light therapy are proposed. They include recommendations for lamps devoid of damaging spectral emissions and standardized therapy fixtures, ophthalmological monitoring of patients with eye diseases and control by optometrists for patients with healthy eyes who are likely to undergo light treatment for extended periods. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|