Historical clue formulations

• Practices photodynamic therapy on — 2024-04-06
• Removes, as a tattoo — 2021-11-28
• Zaps, in a way — 2021-08-09
• Performs some light surgery? — 2018-07-07
• Hits with a beam, as to remove a tattoo — 2010-02-10
• Cuts with light — 2009-12-01
• Emits coherent light — 2003-06-18
• Performs eye surgery, maybe — 2003-06-08
• Performs eye surgery, in a high-tech way — 2002-07-05
• Does high-tech surgery, in a way — 1997-11-30
• Emits powerful beams — 1996-01-14