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World J Transplant. Dec 18, 2023; 13(6): 321-330
Published online Dec 18, 2023. doi: 10.5500/wjt.v13.i6.321
Table 2 Stages of limbal stem cell deficiency
Stage

A
B
C
ICentral 5 mm of cornea not involvedLimbus involvement < 50%Limbus involvement > 50% but < 100%Limbus entirely involved
IICentral 5 mm of cornea involvedLimbus involvement < 50%Limbus involvement > 50% but < 100%
IIIThe entire corneal surface involved