Abstract

Case Report

Low vision due to persistent Cloquet’s canal

Ayse Gul Kocak Altintas*

Published: 26 June, 2018 | Volume 2 - Issue 1 | Pages: 015-017

The Cloquet’s canal (CC) is the remnant of the primary vitreous and it disappears in the intrauterine developmental period of an eye. Rarely it can persist in mature eyes and cause low visual acuity. We detected a persistent CC and low visual acuity in a 36 year-old patient. Fundus fluorescein angiography and optical coherence tomography examinations were completely normal in our case and low visual acuity was directly associated with opacification of the fibrovascular persistent CC tissue. Persistent CC can cause low visual acuity due to directly media opacity effect of fibrovascular tissue without any complication. 

Read Full Article HTML DOI: 10.29328/journal.ijceo.1001014 Cite this Article Read Full Article PDF

Keywords:

Cloquet’s canal; Hyaloid canal; Congenital abnormality

References

  1. Kagemann L, Wollstein G, Ishikawa H, Gabriele ML, Srinivasan VJ, et al. Persistence of Cloquet’s canal in normal healthy eyes. Am J Ophthalmol. 2006; 142: 862-864. Ref.: https://tinyurl.com/yalas6jl
  2. Liu JJ, Witkin AJ, Adhi M, Grulkowski I, Kraus MF, et al. Enhanced vitreous imaging in healthy eyes using swept source optical coherence tomography. PLoS One. 2014; 9: e102950. Ref.: https://tinyurl.com/yc82rxoa
  3. Enaida H, Hata Y, Ueno A, Ishibashi T, Torii H, et al. Visualization of the Cloquet canal during triamcinolone-assisted vitrectomy. Arch Ophthalmol. 2004; 122: 1564-1565. Ref.: https://www.ncbi.nlm.nih.gov/pubmed/15477480
  4. Li D, Kishi S, Itakura H, Ikeda F, Akiyama H. Posterior precortical vitreous pockets and connecting channels in children on swept-source optical coherence tomography. Invest Ophthalmol Vis Sci. 2014; 55: 2412-2416. Ref.: https://tinyurl.com/y9wuk4e6
  5. Itakura H, Kishi S, Li D, Akiyama H. Observation of posterior precortical vitreous pocket using swept-source optical coherence tomography. Invest Ophthalmol Vis Sci. 2013; 54: 3102-3107. Ref.: https://tinyurl.com/ybt4ms3z
  6. Lee AG, Smith SV, Little LM. Visualization of a Hematoma of the Cloquet Canal. JAMA Ophthalmol. 2016; 134: e155364. Ref.: https://tinyurl.com/ydbghqkc

Figures:

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