VAN HERICK ANGLE DEPTH ESTIMATION
Chamber Depth In Corneal Thickness |
Angle Grade |
≥ Cornea |
4 |
1/4 to 1/2 |
3 |
1/4 |
2 |
<1/4 |
1 |
Slit |
Dangerously Narrow |
From: Van Herick W, Shaffer RN, Schwartz A. Estimation of width of angle of anterior chamber. Incidence and significance of the narrow angle. Am. J. Ophthalmol. 1969;68:626-629.
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