rubeosis
C2CEFR level
93/100Rarity: very rare
TechnicalRegister
Abnormal new vessel formation on the iris, typically driven by retinal ischaemia.
Rubeosis on the iris warned that neovascular glaucoma might soon follow the retinal vein occlusion.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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