The effect of standardized keratoplasty technique on IOL power calculation for the triple procedure

J. B. Mattax, James P McCulley

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


Abstract Twenty‐one consecutive triple procedures (keratoplasty, cataract extraction, lens implantation) performed by one surgeon using identical suturing technique, donor size, and donor/recipient size disparity were analyzed for visual outcome and refractive error. Ninety‐five percent of all grafts were clear with an average follow‐up of 11.8 months. Of patients with good pre‐operative visual potential, 84% achieved 20/40 or better visual acuity, and the majority of these patients obtained 20/40 acuity within 6 months of surgery. Sixty‐three percent of eyes with 20/40 or better acuity had refractions within ±2 diopters of the predicted post‐operative refraction. The most recent 14 eyes in this series had IOL power calculations performed utilizing the SRK regression formula and 43.00 K's (surgeon's average post‐keratoplasty keratometry values). Within this group, 79% achieved 20/40 or better vision. Eighty‐two percent of these eyes had refractions within ±2 diopters, and 100% were within ±3 diopters of the predicted value. These findings demonstrate that a single surgeon using standardized keratoplasty can achieve good refractive results in the triple procedure. 1989 Institution Acta Ophthalmologica Scandinavica

Original languageEnglish (US)
Pages (from-to)24-29
Number of pages6
JournalActa Ophthalmologica
Issue number192 S
StatePublished - May 1989


  • intraocular lens power calculation
  • penetrating keratoplasty
  • triple procedure

ASJC Scopus subject areas

  • Ophthalmology


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