Fig. 2
From: Compressive optic neuropathy due to posterior ethmoid mucocele
Postoperative Ophthalmic Findings. (A) optical coherence tomography of right eye (unaffected side). (B) optical coherence tomography of left eye (affected side) 3 weeks after surgery. Severe progression of ganglion cell layer thinning was noted. (C) Initial and (D) final visual field examination. Humphery visual field of the left eye showed significant constriction of the visual field