Analysis of photoastigmatic keratectomy with the cross-cylinder ablation.
Indian J Ophthalmol
;
2012 Jul-Aug; 60(4): 283-287
Artigo
em Inglês
| IMSEAR
| ID: sea-144854
ABSTRACT
Aim:
The aim was to evaluate the safety and efficacy of the “cross-cylinder” technique in the correction of astigmatism. Setting andDesign:
A prospective interventional study from a university eye department was conducted. Material andMethods:
The photoastigmatic refractive keratectomy (PARK) using the “cross-cylinder” technique was performed in 102 eyes of 84 patients with at least 0.75 D of astigmatism. The study population was divided into two groups in the first group the preoperative astigmatic power ranged from –0.75 D to –3.00 D (group 1), in the second group it ranged from –3.25 D to –6.00 D (group 2). Group 1 included 82 eyes of 67 patients (29 males and 38 females) with a mean cylinder power of –1.90 ± 0.63 D, group 2 included 20 eyes of 17 patients (13 males and 4 females) with a mean cylinder power of -4.28 ± 0.76 D. All eyes were targeted for emmetropia. The results were evaluated using Calossi's vector analysis method. Six-month postoperative outcomes are presented.Results:
Six months after PARK the mean sphere for the entire cohort was +0.28 ± 0.75 D (range +2.5 to –2 D), the mean cylindrical power was +0.33 ± 0.51 D (range +2.5 to –1.25 D) and the mean spherical equivalent refraction was +0.73 ± 0.81 D (range +1.75 to –2 D).Conclusions:
The cross-cylinder technique may be safely used with predictable results for the correction of astigmatism.
Texto completo:
DisponíveL
Índice:
IMSEAR (Sudeste Asiático)
Assunto principal:
Astigmatismo
/
Segurança
/
Feminino
/
Humanos
/
Acuidade Visual
/
Reprodutibilidade dos Testes
/
Resultado do Tratamento
/
Ceratectomia Fotorrefrativa
/
Adulto
/
Córnea
Tipo de estudo:
Estudo prognóstico
Idioma:
Inglês
Revista:
Indian J Ophthalmol
Ano de publicação:
2012
Tipo de documento:
Artigo
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