Fig. 3From: Update on pharmacotherapy for ocular surface squamous neoplasiaSlit-lamp photo of OSSN before and after 5-FU treatment. a. Slit-lamp picture of right eye with a large papillary OSSN located temporally abutting the limbus with extension onto the cornea. b. Slit-lamp picture after 4 cycles of 5-fluorouracil (5-FU) 1% shows the clinical regression of the papillary OSSN. There is a small underlying remaining pterygiumBack to article page