https://www.selleckchem.com/pr....oducts/brefeldin-a.h
To propose a new grading system for primary pterygia based on the morphological loss of vertical length of plica semilunaris (LPS). We included 50 eyes from 41 patients with primary pterygium. LPS was defined and quantified as the ratio of the length of loss of the normal vertical morphology at plica semilunaris to the vertical corneal diameter using anterior-segment photographs. Grades of tear metalloproteinase 9 (MMP-9) expression by point-of-care immunoassay, which is a well-known biomarker for inflammation, was correlated with t