Validation of a New Hand Held Light Emitting Diode Device for the Determination of Minimal Erythema Dose (MED)

Validation of a New Hand Held Light Emitting Diode (LED) Device for the Determination of Minimal Erythema Dose (MED) for Narrowband Ultraviolet B.

The purpose of this study is to validate a new hand held light emitting diode (LED) device for the measurement of minimal erythema dose (MED) for narrow band Ultraviolet B (UVB) radiation by comparing to the traditional approach of measurement of the minimal erythema dose.

Inclusion Criteria:

1. Age greater than 18 years.

Exclusion Criteria:

1. Pregnancy
2. Lactation
3. History of photosensitivity disorder
4. Photosensitizing medications
5. Personal history of melanoma or non-melanoma skin cancer.
6. Skin disease on the back