Effect of intraocular lens size on posterior capsule opacification after phacoemulsification

J Cataract Refract Surg. 1995 Jan;21(1):99-102. doi: 10.1016/s0886-3350(13)80487-7.


Posterior capsule opacification (PCO) is one of the most common complications of phacoemulsification with intraocular lens (IOL) implantation. This retrospective study evaluated the incidence of neodymium: YAG (Nd:YAG) laser capsulotomies for PCO in two groups of patients with different sizes of poly(methyl methacrylate) (PMMA), capsular bag-fixated IOLs. We evaluated 437 eyes that had phacoemulsification with continuous curvilinear capsulorhexis over a four-year period. Patients were placed in one of two groups, based on IOL size: large IOL (lens length 13.5 mm or greater) and small IOL (lens length less than 13.5 mm). In the large IOL group, 106 of 280 patients (38%) required YAG laser posterior capsulotomy; in the small IOL group, 25 of 157 patients (16%) did. This difference was statistically significant even though the average follow-up was 84.1 weeks in the large IOL group and 54.1 weeks in the small IOL group.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cataract / etiology*
  • Cataract Extraction / adverse effects*
  • Follow-Up Studies
  • Humans
  • Incidence
  • Laser Therapy
  • Lens Capsule, Crystalline / pathology*
  • Lens Capsule, Crystalline / surgery
  • Lenses, Intraocular* / adverse effects
  • Methylmethacrylates
  • Retrospective Studies
  • Visual Acuity


  • Methylmethacrylates