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Scemla B, Duroi Q, Duraffour P, et al. Transscleral filtration revealing a chorioretinal coloboma. Am J Ophthalmol Case Rep. 2020;21:101003doi: 10.1016/j.ajoc.2020.101003.
Scemla, B., Duroi, Q., Duraffour, P., Souedan, V., & Brézin, A. P. (2021). Transscleral filtration revealing a chorioretinal coloboma. American journal of ophthalmology case reports, 21101003. https://doi.org/10.1016/j.ajoc.2020.101003
Scemla, Benjamin, et al. "Transscleral filtration revealing a chorioretinal coloboma." American journal of ophthalmology case reports vol. 21 (2021): 101003. doi: https://doi.org/10.1016/j.ajoc.2020.101003
Scemla B, Duroi Q, Duraffour P, Souedan V, Brézin AP. Transscleral filtration revealing a chorioretinal coloboma. Am J Ophthalmol Case Rep. 2020 Dec 19;21:101003. doi: 10.1016/j.ajoc.2020.101003. eCollection 2021 Mar. PMID: 33385097; PMCID: PMC7771107.
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Am J Ophthalmol Case Rep. 2020 Dec 19;21:101003. doi: 10.1016/j.ajoc.2020.101003. eCollection 2021 Mar.

Transscleral filtration revealing a chorioretinal coloboma.

American journal of ophthalmology case reports

Benjamin Scemla, Quentin Duroi, Pierre Duraffour, Vaël Souedan, Antoine P Brézin

Affiliations

  1. Université de Paris, Centre d'Ophtalmologie de l'Assistance Publique - Hôpitaux de Paris, Hôpital Cochin, 27 rue du faubourg Saint-Jacques, 75014, Paris, France.

PMID: 33385097 PMCID: PMC7771107 DOI: 10.1016/j.ajoc.2020.101003

Abstract

PURPOSE: We report the case of a 19-year-old patient who presented with an ocular hypotony due to a transscleral filtration through an isolated congenital chorioretinal coloboma in his right eye.

OBSERVATIONS: The initial examination showed a decimal best corrected visual acuity (BCVA) decreased to 0.7 and a marked hypotony. A localized infero-nasal chemosis and a conjunctival hyperemia were observed. The fundus examination showed chorioretinal folds and an edematous disc. In the infero-nasal retinal periphery, a chorioretinal coloboma was seen with a full-thickness scleral defect. Ultrasound biomicroscopy showed the area of the coloboma through which the percolation of fluid occurred.

CONCLUSIONS AND IMPORTANCE: A favorable outcome was observed within 6 weeks and BCVA improved to 1.0 three months later. The intraocular pressure (IOP) increased to 11 mmHg, but the bleb-like filtration could still be seen together with some persistent chorioretinal folds. Ultrasound Biomicroscopy (UBM) imaging was helpful to understand the mechanism of this uncommon complication of a coloboma.

© 2020 The Authors. Published by Elsevier Inc.

Keywords: Chorioretinal coloboma; Ocular hypotony; Transscleral filtration

Conflict of interest statement

The following authors have no financial disclosures: B.S.; Q.D; P.D.; V.S; A.B.

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