| PMLE | polymorphous light eruption |
|---|---|
| QLS | Quality of Life Scale; quasielastic light-scattering spectroscopy |
| UVL | ultraviolet light |
| WLM | white light microscopy; working level month [radon] |
| PLR | pupillary light reflex |
|---|---|
| UVC | ultraviolet C light |
| V L | variable light |
| VL | visible light |