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. 2014 Feb 21;28(5):567–575. doi: 10.1038/eye.2014.26

Table 6. Causes of uncorrected visual acuity <6/18 in the operated eye.

  6 Weeks
1 Year
  Foldable IOL, n=45 Rigid IOL, n=32 Foldable IOL, n=47 Rigid IOL, n=29
Refractive error (astigmatism/biometry error)a 32 (18/14) 28 (17/11) 33 (19/14) 23 (17/7)
Pre-existing comorbidity 7 2 11 3
Related to surgery 6 0 2 2
PCO 0 1 1 1
Unknown 0 1 0 0
a

Uncorrected visual acuity of <6/18 was corrected to 6/18 or better.