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Table 2 Demographics and optical biometric characteristics of patients

From: Accuracy of refractive outcomes using standard or total keratometry for intraocular lens power formulas in conventional cataract surgery

Demographics

Mean ± SD

Median (range)

Age (y)

63.89 ± 12.51

65 (24 to 89)

AL (mm)

24.67 ± 2.52

23.67 (20.05 to 33.66)

ACD (mm)

3.16 ± 0.47

3.18 (1.75 to 4.35)

LT (mm)

4.38 ± 0.50

4.40 (2.94 to5.72)

WTW (mm)

11.68 ± 0.45

11.70 (9.30 to 13.10)

Average K (mm)

44.31 ± 1.38

44.31 (39.97 to 47.17)

Average TK (mm)

44.32 ± 1.38

44.31 (39.29 to 47.08)

Preoperative refraction SE (D)

-4.43 ± 6.84

-2.125 (-28.00 to 3.75)

Postoperative refraction SE (D)

-0.06 ± 0.49

0.00 (-2.00 to 1.50)

IOL power (D)

16.83 ± 6.48

19.50 (-4.00 to 29.50)

  1. SD = standard deviation; CDVA = corrected distance visual acuity; AL = axial length; ACD = anterior chamber depth; LT = lens thickness; K = keratometry; D = diopters; SE = spherical equivalent; IOL = intraocular lens