Black light helps diagnose common skin problem found in pregnant women
Boston University School of Medicine Aug 04, 2017
Researchers at BUSM and BMC have found that using a black light, or WoodÂs light, helps dermatologists determine disease extent of melasma.
ÂIn some cases, melasma can be very difficult to detect with the naked eye, said Neelam Vashi, MD, assistant professor of dermatology at BUSM and director of the Center for Ethnic Skin at BMC and BU. ÂUsing a black light allows us to assess the extent of the disease and counsel patients on sun protection measures and treatment options.Â
A black light detects changes in color or fluorescence in the skin, making pigment disorders appear to shine under the light. It has been suggested as an aid in diagnosing melasma depth, but this is the first study to find a significant quantitative difference between viewing the skin under natural light versus under a black light when evaluating extent in those with subtle disease.
ÂEarly detection is critical in treating this disease before it worsens. Without the use of a black light, the extent of the disease could go unnoticed and worsen over time with ultraviolet ray exposure or laser therapy. Treatment for melasma needs to be maintained, otherwise there is risk of the condition returning, said Vashi.
Melasma treatments include topical creams, chemical peels, microdermabrasion, and sun protection. Researchers recommend that women protect themselves by applying sunblock every two hours when out in the sun or avoiding sun exposure altogether for those with a genetic predisposition, who are pregnant or have a known family history of melasma.
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ÂIn some cases, melasma can be very difficult to detect with the naked eye, said Neelam Vashi, MD, assistant professor of dermatology at BUSM and director of the Center for Ethnic Skin at BMC and BU. ÂUsing a black light allows us to assess the extent of the disease and counsel patients on sun protection measures and treatment options.Â
A black light detects changes in color or fluorescence in the skin, making pigment disorders appear to shine under the light. It has been suggested as an aid in diagnosing melasma depth, but this is the first study to find a significant quantitative difference between viewing the skin under natural light versus under a black light when evaluating extent in those with subtle disease.
ÂEarly detection is critical in treating this disease before it worsens. Without the use of a black light, the extent of the disease could go unnoticed and worsen over time with ultraviolet ray exposure or laser therapy. Treatment for melasma needs to be maintained, otherwise there is risk of the condition returning, said Vashi.
Melasma treatments include topical creams, chemical peels, microdermabrasion, and sun protection. Researchers recommend that women protect themselves by applying sunblock every two hours when out in the sun or avoiding sun exposure altogether for those with a genetic predisposition, who are pregnant or have a known family history of melasma.
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