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[Indications for optimized refractive keratoablation. Communication 1. Dependence on the grade of myopia and baseline high-order aberrations].

Abstract
The authors made a detailed comparative analysis of the aberration pattern of patients before and after aspheric individualized keratoablation (ORK-CAM) and the LASIK operation by routine technology, by taking into account the grade of correctable myopia and the size of baseline high-order aberrations (HOA). Investigations were made in 2 groups: 1) 20 patients (39 eyes) who had undergone routine ablation (a study group); 2) 19 patients (38 eyes) who had aspheric individualized keratoablation (a control group). The findings suggest that individualized aspheric keratoablation is effective in patients with mild and moderate myopia with varying baseline HOA. In addition, a relationship was found between the results of standard and optimized correction and one more key parameter of the aberration pattern, namely the magnitude of 4th-order spherical aberration that should be also taken into account on choosing an eximer laser correction technology. There is an outstanding question whether it is expedient to perform ORK-CAM in patients with high-grade myopia. The above problems require that further studies be continued and will be considered in part 2 of the present investigation.
AuthorsS E Avetisov, A A Karamian, E V Sukhanova
JournalVestnik oftalmologii (Vestn Oftalmol) 2007 Sep-Oct Vol. 123 Issue 5 Pg. 3-5 ISSN: 0042-465X [Print] Russia (Federation)
PMID18078046 (Publication Type: Comparative Study, English Abstract, Journal Article)
Topics
  • Adult
  • Astigmatism (complications, physiopathology, surgery)
  • Humans
  • Keratomileusis, Laser In Situ (methods)
  • Lasers, Excimer
  • Myopia (complications, physiopathology, surgery)
  • Photorefractive Keratectomy (methods)
  • Refraction, Ocular (physiology)
  • Severity of Illness Index
  • Treatment Outcome

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