Document Detail

Comparison of visual quality between aspheric and spherical IOLs.
MedLine Citation:
PMID:  24604606     Owner:  NLM     Status:  Publisher    
Purpose: To determine if aspheric intraocular lens (IOL) implantation produces the same degree of postoperative ocular aberration and contrast sensitivity as spherical IOL implantation.Methods: In this randomized prospective comparative study, 60 eyes of 30 cataract surgery patients were randomly assigned to receive a spherical IOL (Rayner 620H) in one eye and an aspheric IOL (Rayner 920H) in the contralateral eye. All patients were examined at 1 month postoperatively. Primary outcomes of contrast sensitivity and ocular wavefront higher order aberrations (HOAs) were assessed.Results: Aspheric IOLs (median total HOAs 0.26 root mean square [RMS]; range 0.13-0.82 RMS) produced significantly lower total HOAs than spherical IOLs (median total HOAs 0.34 RMS; range 0.18-1.08 RMS; p<0.05). Contrast sensitivity was significantly better with aspheric IOLs (median contrast sensitivity 1.8 log units; range 1.35-1.8 log units) than with spherical IOLs (median contrast sensitivity 1.65 log units; range 1.35-1.8 log units; p<0.05).Conclusions: When compared with a structurally (platform and material) similar spherical IOL (Rayner 620H), aspheric IOLs (Rayner 920H) appear to significantly reduce HOAs and yield better levels of contrast sensitivity under photopic conditions.
Ramazan Yagci; Feyza Uzun; Semra Acer; Ibrahim F Hepsen
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-3-3
Journal Detail:
Title:  European journal of ophthalmology     Volume:  -     ISSN:  1724-6016     ISO Abbreviation:  Eur J Ophthalmol     Publication Date:  2014 Mar 
Date Detail:
Created Date:  2014-3-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9110772     Medline TA:  Eur J Ophthalmol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  0     Citation Subset:  -    
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