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Table 1 The Standardisation of Uveitis Nomenclature (SUN) working group grading scheme for anterior chamber flare [4]

From: Instrument-based tests for quantifying aqueous humour protein levels in uveitis: a systematic review protocol

GradeFlareDescription
0None 
1+FaintBarely detectable
2+ModerateIris and lens details clear
3+MarkedIris and lens details hazy
4+IntenseFixed coagulated aqueous with considerable fibrin
  1. Source: Ref [4]
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