Acute retinal necrosis classification

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Luke Rusowicz-Orazem, B.S.


Acute retinal necrosis may be classified both by duration of symptoms into acute or late, or by severity: mild or fulminant.


  • Acute retinal necrosis (ARN) may be classified by duration of symptoms as follows:[1]
    • Acute stage: Occurs at onset of disease and usually progresses past acute classification after a few weeks
    • Late stage: Is the natural progression of the disease and will present differentiating characteristics after a few weeks up to a few months
  • Acute retinal necrosis can also be classified by severity as follows:[2]
    • Mild: Used to characterize ARN that is stable and non-progressive
    • Fulminant: ARN that is progressive and will usually lead to retinal detachment and further complications if left untreated


  1. Gartry DS, Spalton DJ, Tilzey A, Hykin PG (1991). "Acute retinal necrosis syndrome". Br J Ophthalmol. 75 (5): 292–7. PMC 1042358. PMID 1645179.
  2. Brydak-Godowska J, Borkowski P, Szczepanik S, Moneta-Wielgoś J, Kęcik D (2014). "Clinical manifestation of self-limiting acute retinal necrosis". Med. Sci. Monit. 20: 2088–96. doi:10.12659/MSM.890469. PMC 4226315. PMID 25356955.

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