A phototherapy device includes: a treatment light emitter configured to emit treatment light for causing a reaction of a drug; a first imager configured to obtain a tissue structure image which is formed using narrow band light applied onto an application position of the treatment light; a second imager configured to obtain a fluorescence image which is formed using excitation light applied onto the application position of the treatment light; a boundary region calculator configured to refer to the tissue structure image to determine a boundary region in which a tissue structure has changed; a fluorescence intensity variation calculator configured to calculate magnitude of variation in fluorescence intensity of the boundary region; and a display image generator configured to generate a display image to be used for displaying the magnitude of variation of the fluorescence intensity.

The present disclosure discloses an adjuvant nail treatment device, including a lower shell component and an upper shell component; an irradiation control component and a display screen, which are fixedly arranged in the upper shell component, wherein the irradiation control component includes a circuit board fixedly arranged in the upper shell component, and the display screen penetrates through the upper shell component; the irradiation control component includes a photosensitive lamp group, a therapy lamp group, and a photosensor device which are respectively fixedly arranged on the circuit board and respectively penetrate through a support in the upper shell component; a photosensitive component, fixedly arranged on the lower shell component and located below the irradiation control component, wherein the photosensitive component reflects light emitted by the photosensitive lamp group to the photosensor device; and a battery component, fixedly arranged in the lower shell component.

Light stimulation systems and methods for elevating testosterone levels in male patients.

An apparatus to treat refractive error of the eye comprises one or more optics configured to project stimuli comprising out of focus images onto the peripheral retina outside the macula. While the stimuli can be configured in many ways, in some embodiments the stimuli are arranged to decrease interference with central vison such as macular vision. The stimuli can be out of focus images may comprise an amount of defocus within a range from about 3 Diopters (“D”) to about 6 D. In some embodiments, the brightness of the stimuli is greater than a brightness of background illumination by an appropriate amount such as at least 3 times the background brightness. In some embodiments, each of a plurality of stimuli comprises a spatial frequency distribution with an amplitude profile having spatial frequencies within a range from about range of 1×10.sup.−1 to 2.5×10.sup.1 cycles per degree.

An apparatus to treat refractive error of the eye comprises one or more optics configured to project stimuli comprising out of focus images onto the peripheral retina outside the macula. While the stimuli can be configured in many ways, in some embodiments the stimuli are arranged to decrease interference with central vison such as macular vision. The stimuli can be out of focus images may comprise an amount of defocus within a range from about 3 Diopters (“D”) to about 6 D. In some embodiments, the brightness of the stimuli is greater than a brightness of background illumination by an appropriate amount such as at least 3 times the background brightness. In some embodiments, each of a plurality of stimuli comprises a spatial frequency distribution with an amplitude profile having spatial frequencies within a range from about range of 1×10.sup.−1 to 2.5×10.sup.1 cycles per degree.

The invention concerns a device 10 for illuminating an object 12 with a controlled light intensity, the light intensity being controlled when the light intensity fulfills a plurality of conditions to be fulfilled, the plurality of conditions comprising a condition relative to the intensity at a given time and a condition relative to the dose during a period of time.

A therapeutic irradiation device may include: a source configured to emit electromagnetic radiation in a predetermined spectral range, a sensor configured to detect electromagnetic radiation in the predetermined spectral range of the electromagnetic radiation emitted by the source and to output a signal indicative of a power of the detected radiation, and a controller configured to monitor a magnitude of the signal output by the sensor and to compare the magnitude of the signal with a predetermined magnitude range, wherein the controller is configured to identify a time period during which the magnitude of the signal output by the sensor is included in the predetermined range.

A hand-held light treatment device configured with interchangeable emitter heads that are pre-programmed with desired treatment protocols and updated from a remote store of treatment protocols. The device comprises a handpiece, a plurality of emitter heads, and a base. The removable emitter heads each contain one or more treatment LEDs, a tracking light, a task light, a proximity sensor, and a control module. A tip is attached to the emitter head, either removably or integral therewith. In one embodiment, the tip is integral with the emitter head and emits light to the side of the device, perpendicular to the handpiece. The device is prohibited from emitting light when too far from a surface. Some embodiments have disposable tips of various shapes that attach to the emitter heads, which permits a single device to direct the emitted energy at nearly any direction and be used in a variety of applications.

Disclosed are methods for localized treatment of a skin condition including administering a therapeutically effective amount of at least one biological drug to the subject, utilizing a dosimetry device to transmit varying percentages of the UVB light to an area of the subject's skin; assessing a response of the treated area to the varying percentages of the UVB light transmitted thereto; and determining an optimal dose of UVB light, based on the response of the treated area to the varying percentages of UVB light and to the biological drug; and applying the optimal dose of UVB light to the treatment area.

A treatment support device (1) configured to control therapeutic light irradiated toward a treatment site of a subject (ST) to whom a therapeutic agent containing a fluorescent dye used in photoimmunotherapy has been administered and excite the fluorescent dye by means of the therapeutic light to perform treatment is provided with: a light source (242) for emitting the therapeutic light; a control unit (17) for controlling the irradiation time and the irradiation intensity of the therapeutic light; and a detection unit (182) for detecting the intensity of the fluorescence generated from the fluorescent dye, when the therapeutic light is being emitted. The control unit (17) controls at least one of the irradiation time and the irradiation intensity of the therapeutic light based on the irradiation intensity of the fluorescence.