Fig. 1From: Clinical results of Intraductal Meibomian gland probing combined with intense pulsed light in treating patients with refractory obstructive Meibomian gland dysfunction: a randomized controlled trialThe treatment procedure and structure of our private probe and rinse hollow tube. a the operator inserted the probe into the glands vertically to the orifices. b After probing, chalazion forceps were used to squeeze out remnant meibum. c Then, a hollow tube was used to swash the meibomian gland by injectingBack to article page