Multifocal intraocular lens differentiation using defocus curves

Buckhurst, Phillip J., Wolffsohn, James S., Naroo, Shehzad A., Davies, Leon N., Bhogal, Gurpreet K., Kipioti, Athina and Shah, Sunil (2012). Multifocal intraocular lens differentiation using defocus curves. Investigative Ophthalmology and Visual Science, 57 (7), pp. 3920-3926.


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

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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)
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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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