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Investigating the utility of clinical assessments to predict success with presbyopic contact lens correction.pdf

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Investigating the utility of clinical assessments to predict success with presbyopic contact lens correction.pdf

Contact Lens and Anterior Eye 39 (2016) 322–330 Contents lists available at ScienceDirect Contact Lens and Anterior Eye journal homepage: /locate/clae Investigating the utility of clinical assessments to predict success with presbyopic contact lens correction Ahmed Sivardeena,b, Deborah Laughtona, James S. Wolffsohna,* a Ophthalmic Research Group, School of Life and Health Sciences, Aston University, Birmingham, United Kingdom b Specsavers, New Malden, London, United Kingdom ARTICLE INFO Article history: Received 12 June 2015 Received in revised form 7 May 2016 Accepted 9 May 2016 Keywords: Contact lenses Multifocal Simultaneous images Monovision Presbyopia ABSTRACT Purpose: To determine the utility of a range of clinical and non-clinical indicators to aid the initial selection of the optimum presbyopic contact lens. In addition, to assess whether lens preference was in?uenced by the visual performance compared to the other designs trialled (intra-subject) or compared to participants who preferred other designs (inter-subject). Methods: A double-masked randomised crossover trial of Air Optix Aqua multifocal, PureVision 2 for Presbyopia, Acuvue OASYS for Presbyopia, Bio?nity multifocal and monovision was conducted on 35 presbyopes (54.3 ? 6.2 years). Participant lifestyle, personality, pupil characteristics and aberrometry were assessed prior to lens ?tting. After 4 weeks of wear, high and low contrast visual acuity (VA) under photopic and mesopic conditions, reading speed, Near Activity Visual Questionnaire (NAVQ) rating, subjective quality-of-vision scoring, defocus curves, stereopsis, halometry, aberrometry and ocular physiology were quanti?ed. Results: After trialling all the lenses, preference was mixed (n = 12 Bio?nity, n = 10 monovision, n = 7 Purevision, n = 4 Air Optix Aqua, n = 2 Oasys). Lens preference was not dependent on personality (F = 1.182, p = 0.323) or the hours spent working at near (p = 0.535) or intermediate (p = 0.759) distances. No intersubjec