Difference between narrow spectrum UVB and 308nm excimer laser in vitiligo treatment.

What is the difference between narrow spectrum UVB and 308nm excimer laser in the treatment of vitiligo? Which one is being better?

As mentioned before, there is narrow spectrum UVB and 308 excimer laser in vitiligo phototherapy, so is there big difference in treatment of vitiligo of the two?

Wavelength

Narrow spectrum UVB and 308nm excimer lasers use different wavelengths. Narrow spectrum UVB uses ultraviolet light with a wavelength of 311nm, which is a wide spectrum of ultraviolet light (narrow spectrum is relative meaning), while 308nm excimer laser uses a wavelength of 308nm, with a single wavelength, which is a new means of treatment for vitiligo and has strong targeting.

Scope of application

311nm narrow spectrum UVB is more suitable for vitiligo patients with large area of white patches, especially those who appear white all over their bodies; While 308nm excimer laser is more suitable for patients with small area and localized white patches. Only the irradiation for the skin with white spots, it will not harm the patient's normal skin.

Safety

308nm excimer laser has higher safety and is not easy to bring side effects to patients. Infants, pregnant women and other groups can use the treatment method. Even sensitive parts of the body can be treated with a 308 excimer laser, such as vitiligo around the eyes.

All in all, 308nm excimer laser and narrow spectrum UVB are both effective in the treatment of vitiligo. 308nm excimer laser has better therapeutic effect on vitiligo with relatively small area and localized type. Narrow-spectrum UVB is more economical and practical for vitiligo patients with larger area.