Phototherapy method for treatment of acne
AssigneeThe General Hospital Corporation
InventorsNikiforos Kollias, Robert Gillies, Wei Dong Tian
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Abstract
The present invention is directed to methods for treating acne. The methods include exposing the subject afflicted with acne to ultraviolet light having a wavelength between about 320 to about 350 nm, such that the acne is treated, e.g., inhibited, diminished, eradicated or prevented. In a preferred embodiment, the wavelength is 335 nm and is emitted by either a nitrogen laser or a third harmonic of a NdYAG laser. Treatments can be administered over a several week period, where the subject is exposed to sequential doses of ultraviolet light to obtain beneficial effects, e.g., a reduction or elimination of the acne, e.g., an eradication or diminishment of the bacteria responsible for acne, e.g., Propionibacterium acnes.
Claims17
A method for treating acne, comprising
- exposing a region of skin of a subject afflicted with acne to ultraviolet light having wavelengths substantially contained in a spectral band between about 320 to about 360 nm, and a fluence of between about 1 J/cm2 and about 5 J/cm2, so as to produce a biological response in a target within a layer of the region of skin that effectively enhances treatment of the acne without substantially damaging tissue surrounding the target while limiting overall dose of irradiation.
A method for treating acne, comprising
- exposing a region of skin of a subject afflicted with acne to ultraviolet light having wavelengths substantially contained in a spectral band between about 320 to about 360 nm, and a fluence of between about 1 J/cm2 and about 5 J/cm2, so as to produce a biological response in a sebaceous gland within the region of skin that effectively enhances treatment of the acne without substantially damaging tissue surrounding the sebaceous gland while limiting overall dose of irradiation.
Dependencies are inferred from the claim text.