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.
Limbal anterior chamber depth grading system.
| Van Herick grade | Limbal anterior chamber depth: corneal section thickness (fraction) | Limbal anterior chamber depth (percentage of corneal section thickness) |
|---|---|---|
| 0 | 0 (closed) | 0% |
| 1 | <1/4 | 5% 15% |
| 2 | 1/4 | 25% |
| 3 | 1/4 to 1/2 | 40% 75% |
| 4 | 1 or >1 | ≥100% |
