Forms of phototherapy

A conventional light box contains fluorescent tubes mounted behind a translucent plastic-diffusing screen. Depending on the fluorescent tubes employed, the light emitted is either full spectrum, which contains a little ultraviolet light, or cool white light which has no ultraviolet. The light box usually rests on a table or desk at about the eye level of a seated subject. The output of different light boxes varies, but is generally between 2500 and 10 000 lux. Light sources producing 10 000 lux are more expensive but may allow a reduced duration of exposure (30 min compared with 120 min) to secure a therapeutic effect.(6)

Phototherapy has also been administered using head-mounted units or light visors. These instruments are attached to the head and project light into the eyes allowing subjects to remain mobile while receiving treatment. While light visors are more convenient to use than light boxes, results from placebo-controlled trials of light visors have proved disappointing and their use is not currently recommended. (6)

Breaking Bulimia

Breaking Bulimia

We have all been there: turning to the refrigerator if feeling lonely or bored or indulging in seconds or thirds if strained. But if you suffer from bulimia, the from time to time urge to overeat is more like an obsession.

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