• Users Online: 5758
  • Home
  • Print this page
  • Email this page
ORIGINAL ARTICLE
Year : 2012  |  Volume : 60  |  Issue : 4  |  Page : 283-287

Analysis of photoastigmatic keratectomy with the cross-cylinder ablation


1 Department of Medicine and Surgery, University of Salerno, Salerno, Italy
2 Eye Department, and Centro Grandi Apparecchiature, 2nd University of Naples, Naples, Italy
3 St Paul's Eye Unit, Royal Liverpool University Hospital, Liverpool, United Kingdom
4 Eye Department, 2nd University of Naples, Naples, Italy
5 Department of Medicine and Ageing Science, Ophthalmic Clinic, University "G. d'Annunzio" of Chieti-Pescara, Italy

Correspondence Address:
Maddalena De Bernardo
Centro Grandi Apparecchiature, 2nd University of Naples, Via De Crecchio 16, 80134 Napoli
Italy
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0301-4738.98707

Rights and Permissions

Aim: The aim was to evaluate the safety and efficacy of the "cross-cylinder" technique in the correction of astigmatism. Setting and Design: A prospective interventional study from a university eye department was conducted. Material and Methods: 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.


[FULL TEXT] [PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed3680    
    Printed60    
    Emailed0    
    PDF Downloaded301    
    Comments [Add]    
    Cited by others 4    

Recommend this journal