๐ ็ธฝ็ฎ้ ๏ฝ ๐ ่ฑๆๅๆ๏ผๆฌ็ฏ๏ผ ๏ฝ ๐ ๅฎๆด็ฟป่ญฏ ๏ฝ โญ ็ฒพ่ฏ็ญ่จ
Pulsed-dye laser
Pulsed-dye laser
Pulsed-dye laser (PDL) was the first laser developed to utilize selective photothermolysis to treat dyspigmentation. It uses specialized liquid dye suspension as the source of the laser beam. PDL was first used in the treatment of port-wine stain birthmarks and other vascular lesions, but has since shown efficacy in treating a broad range of dermatologic conditions.55 For example, studies have shown PDLโs effectiveness in treating acne scars.56