Calculation of the Real Corneal Refractive Power after Photorefractive Keratectomy Using Pentacam, When Only the Preoperative Refractive Error is Known

Figure 4

Scatterplot showing correlation between effective treatment at the corneal plane and keratometric difference (Δ) in equivalent K readings at 6 months follow-up, in diopters (D). Solid = correlation line and dashed = bisector.