The rare thing about the skin disorder Vitiligo is that the areas where the pigment got lost due to the vitiligo glow or fluoresce under a Woods Lamp often called Black Light, beneficial black light is in vitiligo. At 365 mm (nano-meters), a standard Wood’s Lamp generates UV light and this might be placed in use for many applications.
Often on the crime shows, where the police place the forensic team to test the blood and other body fluids like sperm, this is actually done with the use of a Woods Light.
The Wood’s Light has been generated after the name of the Professor Robert W. Wood, who is without any doubt the father of Ultraviolet Photography. Professor’s work done in the beginning of 1990 led to the use of UV light for forensic and medical skin and eye detection.
Professor Wood happened to be the first one to record the ultraviolet fluorescence phenomenon. Today this invention ‘Wood’s Lamp’ is used to detect many things like:
• Fungus/fungal infections
• Corneal Scratches.
• Foreign bodies in the eye.
• Blocked tear ducts.
• Tinea versicolor
• Microsporum Canis
• Criminology (for emergency rooms)
• Bacterial Infections.
• Many other skin conditions.
Do take some precautions before using it and do not look directly in the ultraviolet light unless you are provided protective goggles while examining the face. This examination is risk free and while the procedure lasts, you feel nothing.
The doctor or healthcare provider asks the patient to wash and clean the affected area to be examined. There exist a number of creams, ointments and soaps which contain materials which might shine under black light so they have to be eliminated.
It is to be noted that the inspection procedure is to be done in a darkened room.
Thus the affected skin (vitiligo spots) would start glowing and the normal skin would not react or glow.
It is noted that the Fluorescence is reflected light. During the procedure, it is seen that certain materials react to UV (Black Light) and then create light the time they react or “fluoresce”.