Home About us Editorial board Ahead of print Current issue Search Archives Submit article Instructions Subscribe Contacts Login 
  • Users Online: 2343
  • Home
  • Print this page
  • Email this page
ORIGINAL ARTICLE
Year : 2010  |  Volume : 58  |  Issue : 2  |  Page : 109-113

Wavefront analysis and modulation transfer function of three multifocal intraocular lenses


1 Department of Cataract Surgery and Refractive Surgery, University of São Paulo, São Paulo, Brazil
2 Department of Refractive Surgery, University of São Paulo, São Paulo, Brazil
3 Department of Ophthalmology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
4 Department of Cataract Surgery, University of São Paulo, São Paulo, Brazil

Correspondence Address:
Marcony R Santhiago
Teodoro Sampaio St, 498, Apart. 35, Pinheiros - 05406 - 000, São Paulo
Brazil
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0301-4738.60075

Rights and Permissions

Purpose: To evaluate wavefront performance and modulation transfer function (MTF) in the human eye after the implantation of diffractive or refractive multifocal intraocular lenses (IOLs). Materials and Methods: This was a prospective, interventional, comparative, nonrandomized clinical study. Uncorrected distance and near visual acuity, and wavefront analysis including MTF curves (iTrace aberrometer, Tracey Technologies, Houston, TX, USA) were measured in 60 patients after bilateral IOL implantation with 6 months of follow-up. Forty eyes received the diffractive ReSTOR (Alcon), 40 eyes received the refractive ReZoom (Advanced Medical Optics) and 40 eyes, the Tecnis ZM900 (Advanced Medical Optics). The comparison of MTF and aberration between the intraocular lenses was performed using analysis of variance (ANOVA), followed by the Dunn test when necessary. Results: The mean uncorrected distance visual acuity was similar in all three groups of multifocal IOLs. The ReSTOR group provided better uncorrected near visual acuity than the ReZoom group ( P < 0.001), but similar to the Tecnis group. Spherical aberration was significantly higher in the ReZoom group ( P = 0.007). Similar MTF curves were found for the aspheric multifocal IOL Tecnis and the spheric multifocal IOL ReSTOR, and both performed better than the multifocal IOL ReZoom in a 5 mm pupil ( P < 0.001 at all spatial frequencies). Conclusions: Diffractive IOLs studied presented similar MTF curves for a 5 mm pupil diameter. Both diffractive IOLs showed similar spherical aberration, which was significantly better with the full-diffractive IOL Tecnis than with the refractive IOL ReZoom.


[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
    Viewed4789    
    Printed116    
    Emailed4    
    PDF Downloaded435    
    Comments [Add]    
    Cited by others 10    

Recommend this journal