Results 21 to 30 of about 7,224 (183)

Photorefractive keratectomy for low myopia correction using different ablation profiles [PDF]

open access: yes, 2001
Objectives: The present study compares the results obtained with single zone PRK versus multiple zones PRK for treating low myopia. Methods: Nineteen patients presenting spherical equivalent up to 6.00 diopters of myopia, were submitted to PRK using two ...
Campos, Mauro Silveira de Queiroz   +3 more
core   +3 more sources

A comparison of two conjunctival rotation autograft techniques in primary pterygium surgery. [PDF]

open access: yes, 2017
PURPOSE: To compare the effects of 90° and 180° conjunctival rotational autograft (CRA) techniques used in primary pterygium surgery. METHODS: Forty-five patients were included in this retrospective study. Visual acuity (VA), corneal topography, and auto-
Aksoy, Umit   +7 more
core   +2 more sources

Comparison between the postoperative results of triple procedure and combined penetrating keratoplasty/ transsclerally sutured posterior chamber lens implantation [PDF]

open access: yes, 2006
PURPOSE: To compare the outcomes of two surgical techniques of penetrating keratoplasty with different surgical time, regarding the crystalline and the intraocular lens.
Leão, Daniela Maggioni Pereira   +1 more
core   +2 more sources

Correction of ocular aberrations in custom and standard LASIK retreatments [PDF]

open access: yes, 2009
PURPOSE: To compare the correction of ocular aberrations between custom and standard LASIK retreatment. METHODS: Prospective, randomized trial with paired eye control of 74 eyes from 37 patients who underwent LASIK retreatment.
Nosé, Walton, Urbano, Andréia Peltier
core   +3 more sources

New metodology to measure ocular counterrolling [PDF]

open access: yes, 2001
Purpose: To develop a methodology to evaluate ocular torsion reflex. Methods: Modifications of a Helmholtz keratometer were made in order to perform keratometry in the primary position and during head tilt (30 degrees to the right, 30 degrees to the left)
Alves, Carlos Alberto Rodrigues   +3 more
core   +4 more sources

Lasik para correção de miopia, astigmatismos e hipermetropia [PDF]

open access: yesArquivos Brasileiros de Oftalmologia, 2000
SUMMARY Purpose: To report the experience on our first 329 eyesoperated with the Lasik technique for myopia, astigmatismand hyperopia, with a minimum postoperative follow-upperiod of 6 months. Methods: We retrospectively analyzed the results of Lasiksurgery of 110 eyes with low myopia (group I), 113 withmoderate myopia (group II), 47 with high myopia ...
Kwitko, Sérgio   +6 more
openaire   +3 more sources

Queratomileusis in situ asistida por láser en los defectos hipermetrópicos

open access: yesMedisur, 2014
Fundamento: Actualmente el LASIK es una de las técnicas quirúrgicas más usadas para el tratamiento de los trastornos refractivos, entre ellos los hipermetrópicos.
Ester Novoa Sánchez   +5 more
doaj   +2 more sources

Adaptação de lente escleral em doente após queratoplastia penetrante (PKP) com astigmatismo e anisometropia elevada

open access: yesSaúde & Tecnologia, 2023
A reabilitação visual após queratoplastia penetrante (PKP) é a principal indicação para aproximadamente 15% de todas as adaptações de lentes esclerais e um astigmatismo irregular significativo está presente em 62,9% dos doentes após esta técnica.
Ricardo Batista
doaj   +1 more source

Uso de lentes intraoculares tóricas no tratamento cirúrgico de astigmatismo [PDF]

open access: yes, 2014
Correction of corneal astigmatism is a key element of cataract surgery, since post-surgical residual astigmatism can compromise the patient's uncorrected visual acuity.
Koch, Douglas D.   +4 more
core   +3 more sources

Astigmatism in surgery of cataract by phacoemulsification

open access: yesActa Médica del Centro, 2022
Introduction: surgical intervention is the only effective treatment for cataract and phacoemulsification is the most widespread technique for its performance, but even with the development of surgical techniques it may induce astigmatism.
José Guillermo Martínez Urbay   +3 more
doaj  

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