New associations of classic acute macular neuroretinopathy

Marion R. Munk, Lee M. Jampol, Eduardo Cunha Souza, Gabriel Costa De Andrade, Daniel D. Esmaili, David Sarraf, Amani A. Fawzi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

Purpose To describe novel underlying associations of classic acute macular neuroretinopathy (AMN). Methods Multimodal imaging case series evaluating patients with classic AMN lesions and previously unreported underlying aetiologies. Results Six patients were included (five women, one man, mean age 30±7 years). Mean distance best corrected visual acuity at initial presentation was 0.21 ±0.3 logMAR (mean Snellen acuity: 20/30, range 20/15-20/100) and at last follow-up visit 0.09±0.17 logMAR (Snellen acuity: 20/20, range 20/15-20/60). All cases but one had bilateral lesions and showed typical parafoveal hyporeflective lesions on infrared imaging, which corresponded to the hyper-reflectivity in the Henle's layer with attenuation of the external limiting membrane, the ellipsoid zone and interdigitation zone. Underlying diseases included thrombocytopenia and anaemia associated with dengue fever, acute lymphoblastic leukaemia, chronic kidney disease and ulcerative colitis, while Valsalva-like manoeuvre was found to be a potential trigger. Other novel associations included the use of lisdexamphetamine. Conclusions Classic AMN may be associated with leukaemia, dengue fever, ulcerative colitis and chronic kidney disease, probably as a result of chorioretinal hypoxia in the setting of thrombocytopenia and anaemia. Adrenergic agonists such as lisdexamphetamine may also contribute to the manifestation of AMN.

Original languageEnglish (US)
Pages (from-to)389-394
Number of pages6
JournalBritish Journal of Ophthalmology
Volume100
Issue number3
DOIs
StatePublished - Mar 2016

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems
  • Cellular and Molecular Neuroscience

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