Computerized videokeratographic analysis of corneal topographic changes induced by sutured and unsutured 4 mm scleral pocket incisions

J Cataract Refract Surg. 1993;19 Suppl:166-9. doi: 10.1016/s0886-3350(13)80401-4.


We used computerized videokeratography to analyze corneal topographical changes in 39 eyes of 39 patients who had phacoemulsification and posterior chamber lens implantation through 4 mm incisions. In one group of patients, the incisions were closed with a single vertical mattress suture; in the other group, no sutures were used. Computerized videokeratography was performed preoperatively and at one and five to six weeks postoperatively; corneal curvatures were assessed at radial distances of 0.75, 1.5, 2.5, and 3.5 mm along the 0-, 90-, 180-, and 270-degree semimeridians. At one week postoperatively, there was slightly more steepening along the 90- and 270-degree semimeridians (up to 0.9 diopters [D]) and slightly more flattening along the 0- and 180-degree semimeridians (up to 0.6 D) in the sutured group. At six weeks postoperatively, all mean semimeridional changes were less than 0.5 D. Computerized videokeratography demonstrated that sutured and unsutured 4 mm incisions induced clinically small corneal topographic changes and detected local variations in corneal curvature that may be due to sutures, cautery, and other operative factors.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Astigmatism / etiology*
  • Astigmatism / pathology
  • Cataract Extraction*
  • Cornea / pathology*
  • Female
  • Follow-Up Studies
  • Humans
  • Image Processing, Computer-Assisted
  • Lenses, Intraocular
  • Male
  • Middle Aged
  • Postoperative Complications
  • Sclera / surgery*
  • Surgical Flaps
  • Suture Techniques / adverse effects*