[Long-term outcome of optic nerve sheath fenestration in XXXX cerebri].

@entity1 @entity227 @entity1952 @entity2708 @entity6437 @entity1829
BACKGROUND: Chronic @entity1829 may lead to irreversible damage of optic nerve fibers. To preserve visual functions, a decompression of the optic nerve is recommended by means of a fenestration of the optic nerve sheath. In this study long-term results after optic nerve sheath fenestration in @entity1 with idiopathic @entity6437 cerebri are reported. @entity1 AND METHODS: 14 @entity1 were re-examined 15 to 145 months (mean 62 months) after a fenestration of the retrobulbar optic nerve sheath on 23 eyes by a transconjunctival approach. Surgery was done to treat progressive @entity227 or in severe obscurations. The @entity1 's symptoms, visual acuity, visual fields, and ophthalmoscopic findings of the optic nerve head and the central fundus were compared to the preoperative status. RESULTS: Re-examination revealed improvement or stabilisation of objective and subjective findings in 17 eyes, one of them was operated on the more involved contralateral side only. Six eyes showed a recurrence of the @entity1829 without a functional change for the worse after an interval of 7 to 121 months. Three eyes of two @entity1 ended up with @entity1952 and extensive @entity227 . Preoperatively, these eyes had shown @entity2708 wool spots in the optic nerve head and a rapid deterioration of vision. CONCLUSIONS: Fenestration of the retrobulbar optic nerve sheath can prevent further @entity227 in most @entity1 with @entity6437 cerebri, unless the eye has already become nearly blind. Postoperatively, ophthalmological controls are necessary at regular intervals because relapses after successful surgery can occur after months or years.
