There are multiple definitions:
low gradient(English)
Leishman and Giemsa [stain](English)
- aka LG cocktail
- MGG
- https://doi.org….1159/000325981
lissamine green(English)
- refers to corneal staining pattern
- RB
- Ophthalmology
- https://doi.org…b013e3181930c03
lacrimal gland(English)
- the orbital part covers the LR-SR band
- LR-SR
- Gland(ular), Ophthalmology
- https://doi.org…55/2019/5374628