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. 2021 Sep 27;15:3909–3913. doi: 10.2147/OPTH.S334108

Table 1.

Eye Demographics

Parameter Arithmetic Mean ± SD (Range)
AL (mm) 24.45 ± 1.40 (21.78 to 30.4)
Flat K (D) 43.47 ± 1.41 (40.35 to 47.17)
Steep K (D) 44.29 ± 1.40 (41.27 to 48.3)
Anterior keratometric astigmatism (D) 0.81 ± 0.50 (0 to 2.28)
Post-operative manifest refraction
 Sphere (D) −0.65 ± 0.72 (−4.0 to 0.50)
 Cylinder (D) 0.61 ± 0.53 (0 to 2.5)
 SE −0.35 ± 0.72 (−3.375 to 0.875)

Abbreviations: AL, axial length; SE, spherical equivalent.