Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Stages of limbal stem cell deficiency
|
Stage
|
|
A
|
B
|
C
|
| I | Central 5 mm of cornea not involved | Limbus involvement < 50% | Limbus involvement > 50% but < 100% | Limbus entirely involved |
| II | Central 5 mm of cornea involved | Limbus involvement < 50% | Limbus involvement > 50% but < 100% | |
| III | The entire corneal surface involved |
