Skip to main content

Table 1 Preoperative demographics in eyes undergoing implantable collamer lens (ICL) implantation following laser in situ keratomileusis (LASIK)

From: Posterior chamber phakic intraocular lens implantation after laser in situ keratomileusis

Characteristic

Mean ± standard deviation (95% CI, range)

Age

41.4 ± 7.1 years (95% CI 27.5 to 55.3 years, range 30 to 57 years)

Gender

Male: Female = 11: 20

Manifest spherical equivalent

 − 1.87 ± 0.91 D (95% CI − 3.65 to − 0.09 D, range − 4.75 to − 0.75 D)

Manifest cylinder

 − 0.39 ± 0.49 D (95% CI 0.57 to − 1.35 D, range 0 to − 1.75 D)

UDVA

0.51 ± 0.28 logMAR (95% CI 1.06 to − 0.04 logMAR, range 1.00 to 0.10 logMAR)

CDVA

 − 0.21 ± 0.10 logMAR (95% CI − 0.01 to − 0.41 logMAR, range 0.10 to − 0.30 logMAR)

White-to-white distance

11.7 ± 0.5 mm (95% CI 10.72 to 12.68 mm, range 10.8 to 12.8 mm)

Anterior chamber depth

3.12 ± 0.27 mm (95% CI, 2.59 to 3.65 mm, range, 2.80 to 3.72 mm)

Mean keratometric readings

39.27 ± 1.37 D (95% CI, 36.58 to 41.96 D, range, 34.97 to 41.75 D)

ICL size

12.1 mm, 13 eyes (42%), 12.6 mm, 7 eyes (35%), and 13.2 mm, 7 eyes (23%)

ICL spherical power

 − 2.38 ± 1.03 D (95% CI − 4.39 to − 0.37 D, range − 5.00 to − 1.00 D)

ICL cylindrical power

1.38 ± 0.48 D (95% CI 0.44 to 2.31 D, range 1.00 to 2.00 D)

  1. ICL = implantable collamer lens; CI = confidence interval; D = diopter; LogMAR = logarithm of the minimal angle of resolution; UDVA = uncorrected distance visual acuity; CDVA = corrected distance visual acuity