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TitreContrast Sensitivity & Colour Vision in Pseudophakic & Normal Eyes: A Thorough Comparison
ButTo determine contrast sensitivity (CST) and colour vision (CV) in eyes with either aspheric or spheric intra-ocular lens implants (IOLs) and compare those with normal age-matched controls.
MéthodesEyes with either spheric (11) or aspheric (34) IOLs and normal eyes (34) were tested for CST for 5 spatial frequencies using a Vistech C configuration at different background illumination levels with best correction.
In addition, in a set of normals and eyes with aspheric IOLs, CV testing was performed, including the Farnsworth-Munsell 100 Hue test.
All BCVAs were within the normal range both for eyes with IOLs and normal controls.
RésultatsCST levels were generally higher in eyes with aspheric IOLs than in those with spheric IOLs. This difference was more pronounced in mesopic than in photopic environments.
CST in eyes with aspheric IOLs was only mildly inferior to that in normal controls in mesopic conditions, whereas no difference was observed in photopic environments.
CV in eyes with aspheric IOLs was virtually identical than in normal eyes.
ConclusionCST is better in eyes with aspheric IOLs than in those with spheric IOLs. This effect is more pronounced at low light levels. CST is only slightly better in normal than in eyes with aspheric IOLs in mesopic environments, whereas no difference is observed in photopic conditions. CV shows no major differences between eyes with aspheric IOLs and normals.
Auteur 1
NomUVIJLS
InitialesA
InstitutDept of Ophthalmology, Ghent Univ Hospital
VilleGhent
Auteur 2
NomDe Doncker
InitialesR
InstitutDept of Ophthalmology, Ghent Univ Hospital
VilleGhent
Auteur 3
NomSalu
InitialesP
InstitutDept of Ophthalmology, Univ Hospital Brussels
VilleBrussels
Auteur 4
NomKestelyn
InitialesP
InstitutDept of Ophthalmology, Ghent Univ Hospital
VilleGhent
Auteur 5
NomBuyl
InitialesR
InstitutDept of Biostatistics & Med Informatics, Brussels University
VilleBrussels
Auteur 6
NomLeroy
InitialesBP
InstitutDept of Ophthalmology & Ctr for Med Genetics, Ghent Univ Hospital
VilleGhent
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