IOL power calculation after keratorefractive surgery is an important applied aspect of cataract surgery. The probability refractive error especially high when calculating in patients with a history radial keratotomy. There no unified approach to the tactics and methodology for this category at moment. studies were conducted group 17 (26 eyes) RK. Haigis formula, which does not use keratometry p...

Keywords Amblyopia Anisometropia Corneal refractive surgery Amblyopia is one of the most important reversible eye disorders in children and different treatments are suggested. Early diagnosis and effective treatment in amblyogenic age are important criteria. These critical periods correspond to the period when the child's developing visual system is sensitive to abnormal input caused by stimulu...

Pentacam Keratometric Values Unreliable for IOL Power Calculation After Refractive Surgery To the Editor: We read with interest the article by Gonen et al,1 which appeared in the August 2012 issue of the Journal of Refractive Surgery, on their study comparing keratometric data from 200 patients evaluated for refractive surgery using four different devices—an automated keratometer (KR 8800 [Topc...

PURPOSE To assess the impact of refractive surgery on quality of life using the National Eye Institute Refractive Error Quality of Life instrument (NEI-RQL) and to evaluate the responsiveness of our Portuguese version of the NEI-RQL instrument to surgical correction of refractive error. METHODS In this prospective study, the NEI-RQL, a 42-item questionnaire with 13 scales, was self-administer...

In this review, we analyzed the domestic and foreign literature on use of corneal lenticula obtained by keratorefractive surgery using SMILE technology (SMall Incision Lenticula Extraction). Research is being actively carried out a lenticular tissue for refractive purposes: correction hyperopia (LIKE – Lenticular Intrastromal Keratoplasty), presbyopia (PEARL PrEsbyopic Allogenic Refractive Lent...

OBJECTIVE To determine absorption coefficients for sodium chloride solution (saline) and balanced salt solution at the 193- and 213-nm laser wavelengths. METHODS Absorption coefficients were obtained for each of the component species found in balanced salt solution. This was achieved by measuring laser pulse transmission through solutions of varying concentration. The experiments were repeate...

purpose : to present the clinical features, biomechanical properties and management of a patient who developed unilateral corneal ectasia after photorefractive keratectomy (prk) case report : the patient was a 24-year-old man without any obvious preoperative risk factor for ectasia who underwent bilateral prk. four years after keratorefractive surgery, the patient presented with loss of visual ...