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Table 1 Preoperative patient demographics

From: Comparison between toric and spherical phakic intraocular lenses combined with astigmatic keratotomy for high myopic astigmatism

Characteristic TICL Group AK + ICL Group P Value
Age(years)
 Mean ± SD 25.38 ± 3.89 24.29 ± 6.20 0.405
 Range 19 to 35 18 to 38  
Sex (% female) 56.7% 56.3% 0.129
Manifest spherical equivalent (D)
 Mean ± SD −14.14 ± 2.12 −14.83 ± 2.79 0.278
 Range −10.00 to −17.50 −9.50 to −19.50  
Manifest cylinder (D)
 Mean ± SD −2.87 ± 1.09 −2.58 ± 0.85 0.288
 Range −1.50 to −5.50 −1.50 to −5.50  
Best corrected visual acuity (LogMAR)
 Mean ± SD 0.25 ± 0.21 0.24 ± 0.35 0.887
 Range 0.60 to 0.00 1.00 to −0.18  
Uncorrected visual acuity (LogMAR)
 Mean ± SD 1.05 ± 0.05 1.10 ± 0.06 0.383
 Range 2.00 to 0.70 2.00 to 0.60  
  1. TICL toric implantable collamer lens, AK astigmatic keratotomy, ICL implantable collamer lens