Fig. 3From: Clinical results of Intraductal Meibomian gland probing combined with intense pulsed light in treating patients with refractory obstructive Meibomian gland dysfunction: a randomized controlled trialComparation of meibum grade and lid margin finding results after treatment in 3 groups. Notes: all parameters prior treatment had no statistical differences among 3 groups. *P ≤ 0.05/3, **P<0.001Back to article page