Table 1 of Liu, Mol Vis 2014; 20:15-23.


Table 1. Classifications of MRD1 and levator function

MRD1
Normal (+ 4.0 mm ~ + 4.5 mm)
Mild Ptosis (+ 1.5 mm)
Moderate Ptosis (+ 0.5 mm)
Severe Ptosis (- 0.5 mm)
Levator Function
Excellent (13 mm ~ 15 mm)
Good (8 mm ~ 12 mm)
Fair (5 mm ~ 7 mm)
Poor (≤4 mm)