Multifocal intraocular lens differentiation using defocus curves

Research output: Contribution to journalArticle

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
Original languageEnglish
Pages (from-to)3920-3926
Number of pages7
JournalInvestigative Ophthalmology and Visual Science
Volume57
Issue number7
DOIs
Publication statusPublished - 15 May 2012

Fingerprint

Intraocular Lenses

Cite this

@article{ffdde7b0beed44b6b515538b81e35080,
title = "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",
author = "Buckhurst, {Phillip J.} and Wolffsohn, {James S.} and Naroo, {Shehzad A.} and Davies, {Leon N.} and Bhogal, {Gurpreet K.} and Athina Kipioti and Sunil Shah",
year = "2012",
month = "5",
day = "15",
doi = "10.1167/iovs.11-9234",
language = "English",
volume = "57",
pages = "3920--3926",
journal = "Investigative Ophthalmology and Visual Science",
issn = "1552-5783",
publisher = "Association for Research in Vision and Ophthalmology Inc.",
number = "7",

}

Multifocal intraocular lens differentiation using defocus curves. / Buckhurst, Phillip J.; Wolffsohn, James S.; Naroo, Shehzad A.; Davies, Leon N.; Bhogal, Gurpreet K.; Kipioti, Athina; Shah, Sunil.

In: Investigative Ophthalmology and Visual Science, Vol. 57, No. 7, 15.05.2012, p. 3920-3926.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Multifocal intraocular lens differentiation using defocus curves

AU - Buckhurst, Phillip J.

AU - Wolffsohn, James S.

AU - Naroo, Shehzad A.

AU - Davies, Leon N.

AU - Bhogal, Gurpreet K.

AU - Kipioti, Athina

AU - Shah, Sunil

PY - 2012/5/15

Y1 - 2012/5/15

N2 - 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

AB - 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

UR - http://www.scopus.com/inward/record.url?scp=84866751133&partnerID=8YFLogxK

U2 - 10.1167/iovs.11-9234

DO - 10.1167/iovs.11-9234

M3 - Article

C2 - 22589435

VL - 57

SP - 3920

EP - 3926

JO - Investigative Ophthalmology and Visual Science

JF - Investigative Ophthalmology and Visual Science

SN - 1552-5783

IS - 7

ER -