ABSTRACT
BACKGROUND: 5-Fluorouracil (5-FU) is a pyrimidine analogue which selectively inhibits DNA synthesis, RNA synthesis, and VEGF antibodies. 5-FU is widely used in ophthalmology for inhibition of postoperative corneal scarring and scleral bleb fibrosis. CASE PRESENTATION: In this case report, we describe an unusual case of a 65-year-old male who presented to the clinic with progressive decrease of vision after he underwent a revision of scleral bleb with the administration of 0.05 mL 5-FU (2.5 mg) injection and was diagnosed with corneal epithelial hyperplasia. The patient had a history of glaucoma managed by deep sclerotomy and phacoemulsification with intraocular lens implantation. CONCLUSION: Our case demonstrates an unusual consequence of corneal epithelial hyperplasia developed after 5-FU injection.