Fig. 2
From: Update on pharmacotherapy for ocular surface squamous neoplasia
Slit-lamp photo of OSSN before and after IFNα-2b treatment. a. Slit-lamp picture of the right eye with ocular surface squamous neoplasia (OSSN). There is an elevated limbal gelatinous mass with extension of the tumor onto the corneal surface. b. Slit-lamp picture of the same patient after treatment with topical interferon alpha 2b (IFNα-2b) 1 million IU/ml four times daily for 3 months. There is complete resolution of the conjunctival/cornea neoplasia. Treatment was used for four months in total