Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/49114

TitleCombined effect of ocular and multifocal contact lens induced aberrations on visual performance
Author(s)Lopes-Ferreira, Daniela
Fernandes, Paulo Rodrigues Botelho
Queirós, A.
González-Méijome, José Manuel
KeywordsMultifocal contact lenses
Optical aberrations
Vision
Center-distance design
Center-near design
Issue date2017
PublisherLippincott, Williams and Wilkins
JournalEye and Contact Lens
CitationLopes-Ferreira, Daniela; Fernandes, Paulo; Queirós, António; González-Méijome, JM. "Combined Effect of Ocular and Multifocal Contact Lens Induced Aberrations on Visual Performance", Eye & Contact Lens: Science & Clinical Practice, x, 1-1, 2017.
Abstract(s)Contact Lens Association of Ophthalmologists, Inc. PURPOSE:: To evaluate the combined effects of inherent ocular aberrations and induced aberrations with a multifocal soft contact lens (MFCL) after 15 days of lens wear in presbyopic participants and their influence on visual performance at distance and near under high and low contrast conditions. METHODS:: Forty presbyopic participants (mean age, 48.7±3.4) presenting a mean addition of 1.53±0.58 D were fitted with Biofinity Multifocal (CooperVision) and included in the study. Measurements comprised distance and near monocular high (100%) and low contrast (10%) logMAR visual acuity (VA). Ocular aberrations were obtained with Hartmann–Shack aberrometer (IRX3, Imagine Eyes) and analyzed for 2 mm and maximum round natural pupil. RESULTS:: Distance VA was significantly higher in dominant eye, whereas near VA was significantly better in the non-dominant eye (P < 0.05 in all conditions). For a 2-mm pupil in the dominant eye fitted with MFCL, spherical-like aberration significantly increased (P=0.027) so as higher-order aberrations (HOA) (P=0.002). A significant increase was also observed in spherical-like aberrations (P=0.001), coma-like aberrations (P=0.006) and HOA (P=0.004) in non-dominant eye. For the maximum round natural pupil size, a significant decrease in vertical coma was observed (P=0.018) in dominant eye, whereas a significant increase in spherical-like (P < 0.001) and coma-like aberrations (P=0.007) was observed in non-dominant eye. A negative significant correlation was found between vertical coma and high contrast VA (Rho=−0.405, P=0.011) in dominant eye; whereas in non-dominant eye, a significant correlation was found between induced secondary astigmatism and distance VA under high (Rho=0.556, P < 0.001) and low contrast (Rho=0.448, P=0.005). CONCLUSIONS:: On-eye visual performance of MFSCL is dependent on the high-order aberrations induced by dominant and non-dominant design coupled with the wearerʼs inherent aberrations.
TypePreprint
DescriptionPublish ahead of print: JAN 2017
URIhttp://hdl.handle.net/1822/49114
DOI10.1097/ICL.0000000000000355
ISSN1542-2321
Peer-Reviewedyes
AccessRestricted access (UMinho)
Appears in Collections:CDF - OCV - Artigos/Papers (with refereeing)

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