title: Optical zone size in keratomileusis for myopia: computer-assisted evaluation and correction of myopic keratomileusis.
abstract: In this article, we demonstrated the unexpected reduction of optical zone diameter in myopic keratomileusis and its causes. Mathematical evaluation of optical zone diameter was made possible through a module added to a computer program. Optical zone diameter was reduced more in smaller corrections than in higher corrections. Practical measurements were parallel to mathematical expectations except in some small corrections between -4.00 and -6.00 diopters, where it was even more reduced than calculated. We were able to enlarge the optical zone diameter using the same computer module.
authors.affiliation: Benha University, Egypt.
authors.forename: O M
authors.initials: OM
authors.lastname: Asfour
authors.forename: H
authors.initials: H
authors.lastname: el Shami
mesh_terms: D003315:Cornea / Q000473:pathology / Q000601:surgery*; D005069:Evaluation Studies as Topic; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008433:Mathematics; D009216:Myopia / Q000601:surgery*