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dc.contributor.authorVincent, S.J.
dc.contributor.authorCho, P.
dc.contributor.authorChan, K.Y.
dc.contributor.authorFadel, D.
dc.contributor.authorGhorbani Mojarrad, Neema
dc.contributor.authorGonzález-Méijome, J.M.
dc.contributor.authorJohnson, L.
dc.contributor.authorKang, P.
dc.contributor.authorMichaud, L.
dc.contributor.authorSimard, P.
dc.contributor.authorJones, L.
dc.date.accessioned2021-11-10T14:19:11Z
dc.date.accessioned2021-11-25T17:44:44Z
dc.date.available2021-11-10T14:19:11Z
dc.date.available2021-11-25T17:44:44Z
dc.date.issued2021-04
dc.identifier.citationVincent SJ, Cho P, Chan KY et al (2021) CLEAR - Orthokeratology. Contact Lens and Anterior Eye. 44(2): 240-269.en_US
dc.identifier.urihttp://hdl.handle.net/10454/18651
dc.descriptionNoen_US
dc.description.abstractOrthokeratology (ortho-k) is the process of deliberately reshaping the anterior cornea by utilising specialty contact lenses to temporarily and reversibly reduce refractive error after lens removal. Modern ortho-k utilises reverse geometry lens designs, made with highly oxygen permeable rigid materials, worn overnight to reshape the anterior cornea and provide temporary correction of refractive error. More recently, ortho-k has been extensively used to slow the progression of myopia in children. This report reviews the practice of ortho-k, including its history, mechanisms of refractive and ocular changes, current use in the correction of myopia, astigmatism, hyperopia, and presbyopia, and standard of care. Suitable candidates for ortho-k are described, along with the fitting process, factors impacting success, and the potential options for using newer lens designs. Ocular changes associated with ortho-k, such as alterations in corneal thickness, development of microcysts, pigmented arcs, and fibrillary lines are reviewed. The safety of ortho-k is extensively reviewed, along with an overview of non-compliant behaviours and appropriate disinfection regimens. Finally, the role of ortho-k in myopia management for children is discussed in terms of efficacy, safety, and potential mechanisms of myopia control, including the impact of factors such as initial fitting age, baseline refractive error, the role of peripheral defocus, higher order aberrations, pupil size, and treatment zone size.en_US
dc.description.sponsorshipThe CLEAR initiative was facilitated by the BCLA, with financial support by way of Educational Grants for collaboration, publication and dissemination provided by Alcon and CooperVision.en_US
dc.language.isoenen_US
dc.relation.isreferencedbyhttps://doi.org/10.1016/j.clae.2021.02.003en_US
dc.subjectContact lens evidence-based academic reportsen_US
dc.subjectCLEARen_US
dc.subjectOrthokeratologyen_US
dc.subjectCorneal reshapingen_US
dc.subjectRefractive error correctionen_US
dc.subjectMyopia controlen_US
dc.titleCLEAR - Orthokeratologyen_US
dc.status.refereedYesen_US
dc.date.application2021-03-25
dc.typeArticleen_US
dc.type.versionNo full text in the repositoryen_US
dc.date.updated2021-11-10T14:19:14Z
refterms.dateFOA2021-11-25T17:45:29Z
dc.openaccess.statusNot Open Accessen_US


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