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. 2008 Dec;106:187–195.

FIGURE 4.

FIGURE 4

Scatter-plot of mean keratometric astigmatism in all cases at all examinations after penetrating keratoplasty (PK) for keratoconus and Fuchs' dystrophy. Keratometric astigmatism increased after PK for keratoconus (P < .001) but was unchanged after PK for Fuchs dystrophy (P = .55).