Immediate postoperative corneal edema following phacoemulsification irregularly affects the cornea at the sublayer level. The initial central and paracentral non-epithelial thickening is compensated by subsequent central and paracentral epithelial thinning. These initial changes occurred more markedly closest to the main incision over the entrance pupil, which may have visual implications.

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SUMMARYA male patient with herpes zoster ophthalmicus (HZO) presented with left exophthalmos, external and internal ophthalmoplegia and decreased visual acuity. A CT scan revealed myositis without significant compression of the optic nerve. Intravenous acyclovir and oral steroids were started with improvement of the symptoms and eventual complete recovery.Orbital apex syndrome is a rare complication of HZO. Multiple pathogenic mechanisms are involved, including a direct cytopathic effect of the virus as in the present case. Early diagnosis and therapy may lead to complete recovery of visual function. BACKGROUND

The corneal sublayer thickness can be measured reliably using Cirrus HD-OCT in patients who underwent cataract surgery and elderly participants; however, the CET consistency is poorer than the NECCT. Corneal epithelial thickness modifications exceeding 4% reflect true thickness changes instead of random error variations using HD-OCT.