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Parrado-Carrillo, AlbaAuthorBernal-Morales, CarolinaAuthorSanchez-Dalmau, BernardoAuthor
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Case report: Bilateral optic nerve sheath meningocele: clinical aspects

Publicated to:Frontiers In Ophthalmology. 4 1385485- - 2024-05-08 4(), DOI: 10.3389/fopht.2024.1385485

Authors: Catalan-Coronado, Saray; Parrado-Carrillo, Alba; Nogues-Castell, Javier; Rosines-Fonoll, Josep; Camos-Carreras, Anna; Alcubierre, Rafel; Carrion-Donderis, Maria Teresa; Bernal-Morales, Carolina; Sanchez-Dalmau, Bernardo

Affiliations

Hosp Clin Oftalmol, Inst Clin Oftalmol, Barcelona, Spain - Author
Hosp Mar, Dept Oftalmol, Barcelona, Spain - Author
Hosp Univ Mutua Terrassa, Dept Oftalmol, Terrassa, Spain - Author
Univ Barcelona, Fac Med, Barcelona, Spain - Author

Abstract

Optic nerve sheath meningocele is an enlargement of the sheath itself, consisting of a collection of cerebrospinal fluid along the perineural space. It should be considered primary if it is not associated with orbital-cerebral neoplasm or with cranio-orbital junction malformations. We report three cases of bilateral primary idiopathic optic nerve sheath meningocele, two of them with gradual vision loss. The first case presented a history of monocular blurred vision of the right eye and headache. It was initially treated with acetazolamide without any improvement, after which optic nerve sheath fenestration was required. The second case showed intermittent binocular diplopia with central 24-2 perimetry defects in the left eye. The third case was first presented as a subacute bilateral conjunctivitis with a suspected orbital pseudotumor. An incidental bilateral optic nerve sheath meningocele was found in the orbital imaging, being totally asymptomatic. In all the cases, orbital and cranial magnetic resonance with contrast and fat suppression was crucial in the diagnosis.

Keywords
DiplopiaNeuroopthalmologyOptic nervOptic nerveOptic nerve sheath meningoceleVisual field

Quality index

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-05-09:

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 0.5.
  • The number of mentions on the social network X (formerly Twitter): 1 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: Last Author (Sanchez Dalmau, Bernardo Franci).