The main objective of refractive surgery is improving the patient’s quality of life by decreasing their dependence on spectacles and contact lenses. In the majority of cases, we, refractive surgeons, are dealing with young healthy individuals with excellent quality of vision; they are seeking no less than excellent uncorrected visual acuity with at least the same quality of vision postoperative...

To the Editor: We read the recent article by Tuwairqi and Sinjab,1 which appeared in the May 2012 issue of the Journal of Refractive Surgery, and would like to offer some comments. Tuwairqi and Sinjab, in this prospective and noncontrolled study, performed corneal collagen cross-linking (CXL) in patients with stage 1 or 2 keratoconus pretreated with topography-guided photorefractive keratectomy...

Reply : We would like to apologize to Dr. Ali6 o if he was offended that his work was not cited in our review article. There was certainly no pur­ poseful intent on the part of the authors to exclude his work from our review nor to neglect his contribu­ tions to the field. Rather, our work was intended as a brief review of the existing technologies and, therefore, inevitably some concision was ...

PURPOSE To evaluate the clinical outcomes after implantation of the MyoRing (DIOPTEX GmBH, Linz, Austria) by means of femtosecond laser technology in eyes with corneal ectasia. DESIGN Retrospective, consecutive, nonrandomized, case series. PARTICIPANTS A total of 12 eyes of 11 patients with ages ranging from 17 to 50 years were included. All cases were diagnosed with corneal ectasia accordi...

PURPOSE Clinically evaluate a modified applanating surface Goldmann tonometer prism designed to substantially negate errors due to patient variability in biomechanics. METHODS A modified Goldmann prism with a correcting applanation tonometry surface (CATS) was mathematically optimized to minimize the intraocular pressure (IOP) measurement error due to patient variability in corneal thickness,...

PURPOSE The purpose of the study was to determine the accuracy of intraocular pressure (IOP) measurement after small incision lenticule extraction (SMILE) using Goldmann applanation tonometry (GAT) and ocular response analyzer (ORA). METHODS This is a prospective clinical study that was conducted on 30 eyes in the interval between February 2016 and September 2016. The age of the patients rang...

Knowledge of strain-rate sensitivity of corneal tissue is important for improving the understanding of the tissue's response to mechanical actions and the accurate numerical simulation of corneal biomechanical behaviour under the effects of disease and surgery. In the study, fresh and well-preserved porcine and ovine corneal buttons were subjected to uniaxial tension loads with seven different ...