Monarch Disease Ontology id MONDO_0005883 (ophthalmic herpes zoster) is virus infection of the Gasserian ganglion and its nerve branches characterized by pain and vesicular eruptions with much swelling. Ocular involvement is usually heralded by a vesicle on the tip of the nose. This area is innervated by the nasociliary nerve. Also known as: herpes zoster ophthalmicus.