Table 1. Distribution of exfoliation patients with no glaucoma (XFO), exfoliation with glaucoma (XFG), and exfoliation unclassified (XFU) in American and European patients.

Subtype	American	European	Total
XFO	72	23	95
XFG	93	40	133
XFU	6	53	59
XFS	171	116	287

XFS represents all exfoliation groups combined.