Keratoconus keratoplasty curvatures and contact lens wear.
Fifty-three grafted keratoconus corneas chosen at random from several hundred operated upon over a 10-year period showed an increase in myopia after removal of sutures but a decrease in astigmatism. With the photoelectrokeratograph machine the spherical zone was shown to be limited to 3 mm with gross eccentricities. Half the patients chose to wear contact lenses after surgery and 10% had no correction. Contact lens wearers showed a much greater decrease in astigmatism than spectacle wearers.
D001251:Astigmatism / Q000209:etiology; D003261:Contact Lenses; D003315:Cornea / Q000503:physiopathology; D016039:Corneal Transplantation; D006801:Humans; D007640:Keratoconus / Q000601:surgery*; D011183:Postoperative Complications; D012030:Refractive Errors / Q000209:etiology; D013536:Suture Techniques; D014792:Visual Acuity