Assessment of Vitiligo Lesions Using Polarized Dermoscopy, Sub-Ultraviolet Reflectance Dermoscopy, and Ultraviolet Dermoscopy

The goal of this observational study is to learn how different close-up skin imaging methods show vitiligo spots in adults with vitiligo. The study will look at skin changes that may be related to whether a vitiligo spot is active, stable, or gaining color again. The main question it aims to answer is: Can special light-based imaging methods show useful details of vitiligo spots differently than regular polarized dermoscopy? Participants will have vitiligo spots photographed during one study visit. Researchers will take images using polarized dermoscopy, sub-ultraviolet reflectance imaging, and ultraviolet fluorescence dermoscopy. Dermatologists will later review the coded images and score how clearly selected skin features can be seen. The study will not change participants' treatment. It will not include blood tests, biopsy, injections, or any other invasive procedure.