Multifocal intraocular lens differentiation using defocus curves

Abstract

Purpose: To determine the most appropriate analysis technique for the differentiation of multifocal intraocular lens (MIOL) designs using defocus curve assessment of visual capability.Methods:Four groups of fifteen subjects were implanted bilaterally with either monofocal intraocular lenses, refractive MIOLs, diffractive MIOLs, or a combination of refractive and diffractive MIOLs. Defocus curves between -5.0D and +1.5D were evaluated using an absolute and relative depth-of-focus method, the direct comparison method and a new 'Area-of-focus' metric. The results were correlated with a subjective perception of near and intermediate vision. Results:Neither depth-of-focus method of analysis were sensitive enough to differentiate between MIOL groups (p>0.05). The direct comparison method indicated that the refractive MIOL group performed better at +1.00, -1.00 and -1.50 D and worse at -3.00, -3.50, -4.00 and -5.00D compared to the diffractive MIOL group (p

Publication DOI: https://doi.org/10.1167/iovs.11-9234
Divisions: Life & Health Sciences > Ophthalmic Research Group
Life & Health Sciences > Vision, Hearing and Language
Life & Health Sciences
Life & Health Sciences > Optometry
Uncontrolled Keywords: Medicine(all)
Full Text Link:
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2012-05-15
Authors: Buckhurst, Phillip J.
Wolffsohn, James S. ( 0000-0003-4673-8927)
Naroo, Shehzad A. ( 0000-0002-6373-7187)
Davies, Leon N. ( 0000-0002-1554-0566)
Bhogal, Gurpreet K. ( 0000-0001-8742-6319)
Kipioti, Athina
Shah, Sunil

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