International Scholarly Research Notices / 2011 / Article / Tab 2

Clinical Study

Simultaneous Phacoemulsification and Graft Refractive Surgery in Penetrating Keratoplasty Eyes

Table 2

Coupling ratio (CR) and coupling constant (CC) calculated on the basis of keratometry.

CharacteristicMean ± SD (range)

Flattening of incised meridian (D)2.49 ± 2.86 (−2.50 to 6.95)
Steepening of opposite meridian (D)3.73 ± 2.78 (−1.50 to 8.02)
CR0.70 ± 1.24 (−1.33 to 3.56)
CC0.04 ± 0.58 (−0.67 to 1.75)

D: diopter; SD: standard deviation.

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