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    A comparison of spectacles purchased online and in UK optometry practice

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    alderson_et_al_2016.pdf (305.8Kb)
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    Publication date
    2016-10
    Author
    Alderson, Alison J.
    Green, Alison
    Whitaker, David J.
    Scally, Andy J.
    Elliott, David B.
    Keyword
    Online spectacles; UK; United Kingdom; Prescription accuracy; Optometry practice
    Rights
    (c) 2016 American Academy of Optometrists. This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially.
    Peer-Reviewed
    Yes
    
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    Abstract
    Purpose: To compare spectacles bought online with spectacles from optometry practices. Methods: Thirty-three participants consisting of single vision spectacle wearers with either a low (N = 12, mean age 34 ± 14 years) or high prescription (N = 11, mean age 28 ± 9 years) and 10 presbyopic participants (mean age 59 ± 4 years) wearing progressive addition lenses (PALs) purchased 154 pairs of spectacles online and 154 from UK optometry practices. The spectacles were compared via participant-reported preference, acceptability, and safety; the assessment of lens, frame, and fit quality; and the accuracy of the lens prescriptions to international standard ISO 21987:2009. Results: Participants preferred the practice spectacles (median ranking 4th, IQR 1–6) more than online (6th, IQR 4–8; Mann-Whitney U = 7345, p < 0.001) and practice PALs (median ranking 2nd, IQR 1–4) were particularly preferred (online 6.5th, IQR 4–9, Mann-Whitney U = 455, p < 0.001). Of those deemed unacceptable and unsafe, significantly more were bought online (unacceptable: online 43/154 vs. practice 15/154, Fisher’s exact p = 0.0001; unsafe: online 14/154 vs. practice 5/154, Fisher’s exact p = 0.03). Conclusions: Participants preferred spectacles from optometry practice rather than those bought online, despite lens quality and prescription accuracy being similar. A greater number of online spectacles were deemed unsafe or unacceptable because of poor spectacle frame fit, poor cosmetic appearance, and inaccurate optical centration. This seems particularly pertinent to PAL lenses, which are known to increase falls risk. Recommendations are made to improve both forms of spectacle provision.
    URI
    http://hdl.handle.net/10454/9899
    Version
    published version paper
    Citation
    Alderson AJ, Green A, Whitaker D et al (2016) A comparison of spectacles purchased online and in UK optometry practice. Optometry and Vision Science. 93(10): 1196-1202.
    Link to publisher’s version
    http://dx.doi.org/10.1097/OPX.0000000000000955
    Type
    Article
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    Life Sciences Publications
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