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Título

Through focus image quality of eyes implanted with monofocal and multifocal intraocular lenses

AutorArtal, Pablo; Marcos, Susana ; Navarro, Rafael; Miranda, Ismael; Ferro, Manuel
Palabras claveOphthalmology
Retinal image quality
Intraocular lenses
Modulation transfer
Fecha de publicaciónmar-1995
EditorSociety of Photo-Optical Instrumentation Engineers
CitaciónOptical Engineering 34(3): 772-779 (1995)
ResumenA double-pass method is applied to determine the retinal image quality of eyes implanted with intraocular lenses (lOLs). The effect of focus on image quality was measured in two groups of patients that had been implanted with either monofocal or multifocal lOLs. The results show that the overall retinal image quality is reduced in eyes with multifocal lenses with respect to that implanted with monofocal lOLs. Although the depth of focus is larger in multifocal lOLs (4 to 5 D) than in the monofocal lOLs (2 to 3 D), some patients implanted with monofocal lOLs have higher image quality than those implanted with multifocal lOLs in a range of about 4 D around the best focus. In eyes implanted with monofocal lOLs, astigmatism plays a major role to reduce the retinal contrast, but also increases the depth of focus. These "in vivo" measurements show that there is considerable variability in image quality among individuals with the same type of monofocal lOLs. The main factors causing this variability seem to be age and astigmatism produced by surgery.
Descripción8 pages, 9 figures.
Versión del editorhttp://dx.doi.org/10.1117/12.191818
URIhttp://hdl.handle.net/10261/8555
http://www.vision.csic.es/Publications/Articles/Through%20focus%20image%20quality%20of%20eyes%20implanted%20with%20monofocal%20and%20multifocal%20intraocular%20lenses.pdf
DOI10.1117/12.191818
ISSN0091-3286
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