title: Corneal Topographic Changes After Eyelid Ptosis Surgery.
abstract: OBJECTIVE
  To evaluate the corneal topography and the topographic changes after ptosis surgery on patients affected by congenital and acquired blepharoptosis.
  
  
  METHODS
  Twenty eyes of 17 patients affected by acquired and congenital ptosis underwent surgical correction through anterior levator complex tightening. Computerized tomography (Syrius Sistem; CSO) was used to analyze any change in corneal astigmatism (CYL), simulated keratometry, anterior corneal symmetry index front, apical keratometry front, and central corneal thickness. Visual acuity, margin reflex distance, and levator function were also measured.
  
  
  RESULTS
  After surgical ptosis repair, corneal topography demonstrated a reduction in average keratometry of 0.15 ± 0.47 diopters (D) and in corneal astigmatism of 0.26 ± 1.12 D. Significant differences were found in apical keratometry front (-1.84 ± 1.76 D) and in best-corrected visual acuity (-0.18 ± 0.06 logMAR) in the postoperative examinations. Central corneal thickness did not show significant differences between preoperative and postoperative examinations. Postoperative topographic maps showed a reduction of symmetry index front (0.10 ± 0.64 D).
  
  
  CONCLUSIONS
  Eyelid ptosis modifies anterior corneal surface inducing refractive errors and modifying corneal astigmatism in patients, thus affecting the quality of vision. The surgical correction of blepharoptosis induces anterior corneal surface modification, restoring corneal symmetry and regular corneal astigmatism. Postoperative corneal topography showed normal corneal contours.
authors.affiliation: *Ophthalmology Unit, Catholic University of Sacred Heart, Rome, Italy; and †Public Health Unit, Catholic University of Sacred Heart, Rome, Italy.
authors.forename: Gustavo
authors.initials: G
authors.lastname: Savino
authors.forename: Remo
authors.initials: R
authors.lastname: Battendieri
authors.forename: Monica
authors.initials: M
authors.lastname: Riso
authors.forename: Salvatore
authors.initials: S
authors.lastname: Traina
authors.forename: Andrea
authors.initials: A
authors.lastname: Poscia
authors.forename: Giovanni
authors.initials: G
authors.lastname: DʼAmico
authors.forename: Aldo
authors.initials: A
authors.lastname: Caporossi
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001251:Astigmatism / Q000503:physiopathology; D001763:Blepharoptosis / Q000503:physiopathology / Q000601:surgery*; D003315:Cornea / Q000503:physiopathology*; D019781:Corneal Topography; D005260:Female; D006801:Humans; D008297:Male; D013508:Ophthalmologic Surgical Procedures; D012029:Refraction, Ocular; D012189:Retrospective Studies; D014792:Visual Acuity / Q000502:physiology; D055815:Young Adult