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August 1981

A Phototherapy Cabinet for Ultraviolet Radiation Therapy

Author Affiliations

From the Department of Dermatology, Mount Sinai Medical Center, Miami Beach, Fla.

Arch Dermatol. 1981;117(8):469-473. doi:10.1001/archderm.1981.01650080023021

• A newly designed cabinet can be used for the treatment of psoriasis with fluorescent ultraviolet (UV) lamps. The new design provides more uniform distribution of UV radiation in both the horizontal and vertical axes, and several safety features have been added. The distribution and uniformity of UV output in this and in a previously described cabinet are compared. The UV output at the vertical center of the older UV light cabinet was six times greater than that at either the top or bottom, while the design of the present cabinet provides uniform UV radiation except for a slight increase at head height and at the level of the lower legs compared with the middle third of the cabinet. The variation in output of the older cabinet may, in part, explain the commonly encountered difficulty in the phototherapy of psoriasis of the scalp and lower extremities.

(Arch Dermatol 1981;117:469-473)