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您的检索式：作者名="Alejandro Navas"
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| 1 | Keratoconus therapeutics advances显示文摘Keratoconus is a progressive, usually bilateral disease of the cornea that significantly diminishes visual acuity, secondary to a progressive corneal deformity which is characterized by corneal thinning, variable degrees of irregular astigmatism and specific abnormal topographic patterns. Normally it initiates during puberty and is progressive until the third or fourth decade of life, when normally the progression rate is diminished or waned. There are multiple scales to clinically classify keratoconus. One of the most commonly used is Amsler-Krumeich and recently with the development of morphometric and aberrometric techniques, additional scales have been created that allow keratoconus to be classified according to its severity. Despite certain etiology of keratoconus remains unknown, current treatment options are available in patients with ectatic corneas and they vary depending on the severity of the disease and they include spectacles, contact lenses, intrastromal rings, keratoplasty both penetrant or lamellar, cross-linking, refractive lens exchange withintraocular lens implant, phakic intraocular lenses and the combination of these alternatives. Some authors have been using excimer laser in patients with keratoconus but the safety of the procedure is controversial. Currently, the techniques for the management of keratoconus can be classified in 3 types: corneal strengthening techniques, optical optimization techniques and combined techniques. | Martha Jaimes Arturo Ramirez-Miranda Enrique O Graue-Hernández Alejandro Navas | 2013 | World Journal of Ophthalmology2013，3，3： | 1 |
| 2 | Toxic anterior segment syndrome after implantation of phakic implantable collamer lens显示文摘Dear Editor,Iam Dr.Erick Hemandez-Bogantes from the Department of Cornea and Refractive Surgery,Conde of Valenciana Foundation Institute of Ophthalmology,Mexico City,Mexico. The purpose of this letter is to present 3 cases (6 eyes)of toxic anterior segment syndrome (TASS)after same day implantation of a posterior phakic implantable collamer lens (ICL;V4c Visian ICL;STAAR Surgical,Monrovia,CA,USA). | Erick Hernandez-Bogantes Arturo Ramirez-Miranda Andrew Olivo-Payne Alexandra Abdala-Figuerola Alejandro Navas Enrique O.Graue-Hernandez | 2019 | International Journal of Ophthalmology(English edition)2019，12，1： | 0 |
| 3 | Trans-epithelial accelerated corneal cross-linking for keratoconus in children显示文摘The aim of the study is to evaluate the safety and effi cacy of trans-epithelial accelerated corneal cross-linking(TE-ACXL) in children with progressive keratoconus.Retrospective,case-series of 23 eyes of 14 children who underwent TE-ACXL.Evaluations were performed at baseline and 1,3,6,12 and 18 mo postoperatively.Mean follow-up time of 23.82±3.15 mo and mean age was 13.7±1.4 y(range 11 to 16 y).Mean preoperative uncorrected distance visual acuity changed from 0.92±0.45 log MAR(20/160) to 0.71±0.40 log MAR(20/100)(P=0.001).Mean keratometry(Km) changed from 53.87± 6.03 to 53.00±5.81(P=0.001).Pachymetry did not have significant changes at last follow-up(P=0.30).The mean preoperative sphere was-5.58±2.48 and-4.89±4.66 D(P=0.11) at last follow-up;refractive cylinder from-5.58±2.48 to-5.02±2.23(P=0.046).In conclusion,tomographic and refractive stability are shown in over 91% of eyes with pediatric progressive keratoconus who underwent TE-ACXL. | Andrew Olivo-Payne Juan Carlos Serna-Ojeda Erick Hernandez-Bogantes Alexandra Abdala-Figuerola Lueero Pedro-Aguilar Alejandro Liehtinger Arturo Ramirez-Miranda Alejandro Navas Enrique O. Graue-Hernandez | 2017 | International Journal of Ophthalmology(English edition)2017，10，12： | 0 |
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