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dc.contributor.authorPapadatou, E
dc.contributor.authorDel Aguila-Carrasco, AJ
dc.contributor.authorEsteve-Taboada, JJ
dc.contributor.authorMadrid-Costa, D
dc.contributor.authorCervino-Exposito, A
dc.date.accessioned2018-09-20T17:45:02Z
dc.date.available2018-09-20T17:45:02Z
dc.date.issued2017-01-18
dc.identifier.issn2222-3959
dc.identifier.issn2227-4898
dc.identifier.urihttp://hdl.handle.net/10026.1/12395
dc.description.abstract

AIM: To analytically assess the effect of pupil size upon the refractive power distributions of different designs of multifocal contact lenses. METHODS: Two multifocal contact lenses of center-near design and one multifocal contact lens of center-distance design were used in this study. Their power profiles were measured using the NIMO TR1504 device (LAMBDA-X, Belgium). Based on their power profiles, the power distribution was assessed as a function of pupil size. For the high addition lenses, the resulting refractive power as a function of viewing distance (far, intermediate, and near) and pupil size was also analyzed. RESULTS: The power distribution of the lenses was affected by pupil size differently. One of the lenses showed a significant spread in refractive power distribution, from about -3 D to 0 D. Generally, the power distribution of the lenses expanded as the pupil diameter became greater. The surface of the lens dedicated for each distance varied substantially with the design of the lens. CONCLUSION: In an experimental basis, our results show how the lenses power distribution is affected by the pupil size and underlined the necessity of careful evaluation of the patient's visual needs and the optical properties of a multifocal contact lens for achieving the optimal visual outcome.

dc.format.extent103-108
dc.format.mediumElectronic-eCollection
dc.languageeng
dc.language.isoeng
dc.publisherPress of International Journal of Ophthalmology (IJO Press)
dc.subjectmultifocal contact lenses
dc.subjectpupil size
dc.subjectpower profiles
dc.subjectrefractive power distribution
dc.titleObjective assessment of the effect of pupil size upon the power distribution of multifocal contact lenses
dc.typejournal-article
dc.typeArticle
plymouth.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/28149785
plymouth.issue1
plymouth.volume10
plymouth.publisher-urlhttp://dx.doi.org/10.18240/ijo.2017.01.17
plymouth.publication-statusPublished
plymouth.journalInternational Journal of Ophthalmology
dc.identifier.doi10.18240/ijo.2017.01.17
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Health
plymouth.organisational-group/Plymouth/Faculty of Health/School of Health Professions
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA03 Allied Health Professions, Dentistry, Nursing and Pharmacy
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dc.publisher.placeChina
dcterms.dateAccepted2016-09-18
dc.identifier.eissn2227-4898
dc.rights.embargoperiodNot known
rioxxterms.versionofrecord10.18240/ijo.2017.01.17
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2017
rioxxterms.typeJournal Article/Review


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