International Scholarly Research Notices / 2011 / Article / Tab 1

Clinical Study

Simultaneous Phacoemulsification and Graft Refractive Surgery in Penetrating Keratoplasty Eyes

Table 1

Refractive and keratometric spherical equivalent and astigmatism before and after combined phacoemulsification and graft refractive surgery.

CharacteristicsPreoperative values mean ± SD (range)Postoperative values mean ± SD (range)P-value

Spherical equivalent (D)Refraction−3.31 ± 3.96 (−9.0 to 2.75)−1.69 ± 2.38 (−6.75 to 1.50)0.02
Keratometry44.79 ± 2.08 (41.75 to 53.25)45.65 ± 1.86 (41.0 to 56.50)0.26

Astigmatism (D)Refraction5.43 ± 1.50 (1.75 to 7.0)3.42 ± 1.73 (1.25 to 6.0)0.04
Keratometry8.10 ± 2.50 (3.50 to 11.50)5.07 ± 2.53 (2.0 to 9.50)0.03

Mean keratometry (D)47.17 ± 3.11 (41.75 to 53.25)47.79 ± 4.21 (41.0 to 56.50)0.26

D: diopter; SD: standard deviation.

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