Fig. 1From: Transient ocular surface non-perfusion during cataract phacoemulsification surgeryDemonstration of the TOSN in patient 1. a Before non-perfusion. b On the time of non-perfusion. Notice the gas bubbles and pale pterygium (arrow). c The reperfusion started. Notice the episcleral artery (arrow). d Reperfusion of the majority of conjunctival and episcleral vessels. Notice the color to the pterygium (arrow)Back to article page