To evaluate the corneal topography and the topographic changes after ptosis surgery on patients affected by congenital and acquired blepharoptosis.
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.
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).
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.
*Ophthalmology Unit, Catholic University of Sacred Heart, Rome, Italy; and
†Public Health Unit, Catholic University of Sacred Heart, Rome, Italy.
Reprints: Gustavo Savino, MD, Ophthalmology Unit, Catholic University of Sacred Heart, Largo F. Vito 1, 00168 Rome, Italy (e-mail: firstname.lastname@example.org).
The authors have no funding or conflicts of interest to disclose.
Received September 08, 2015
Received in revised form October 25, 2015
Accepted October 30, 2015