The Exsys 308 is a XeCl excimer lamp (308nm) available at Lasermed for monochromatic UVB therapy of dermatologic auto-immune diseases, including Vitiligo, Psoriasis, Atopic dermatitis, Hypo-pigmentation, Alopecia areata, Mycosis fungoids and Lichen planus. Ame Smit of Lasermed explains.
The UVB light penetrates the skin and modulates its immune system and stimulates the melanocytes to produce melanin. This type of laser is specially designed to produce ultraviolet light at a very specific wavelength (308nm). It’s ideal to focus on specific areas of the body thanks to its handheld head piece that can be moved around easily to focus on small spots.
Advantages: Healthy skin surrounding the affected areas isn’t exposed to radiation. Different templates are used according to the area to be treated, a higher dose of radiation can be used on the small areas and it can be used on areas difficult to reach with conventional phototherapy.
People with widespread Vitiligo can make use of UVB booths to treat bigger areas, but this also affects normal skin areas. There are more light therapies available, but UVB therapy is known to be a safer option and achieves satisfying results. It’s very important to consult with your dermatologist to determine the best treatment option.
As explained in a previous article, Vitiligo is an auto-immune disorder which affects the melanocytes in the skin, causing the loss of skin colour on any part of the body. The immune system becomes overactive and attacks the melanocytes which produce melanin (colour) in the skin. The condition is not life-threatening or contagious. Treatment may improve the appearance of the affected skin but doesn’t cure the disease.
Exposure to UVB light can help individuals to improve (re-pigment) the affected areas. A combination of UVB therapy and topical steroid creams are more successful treatment options.
There are two main types of Vitiligo:
- Non-segmental – is the most common type and occurs in up to 90% of sufferers. The patches often appear equally on both sides of the body. Usually found on places more exposed to sunlight.
- Segmental – affects only about 10% of people of sufferers. It’s non-symmetrical and usually tends to affect areas of the skin attached to dorsal roots of the spine. It spreads more rapidly, but is considered more constant and stable. It’s more noticeable in early age groups and responds well to topical treatment.
