April 2011
Volume 52, Issue 14
Free
ARVO Annual Meeting Abstract  |   April 2011
Is Contact Lens Comfort Influenced By Lens Replacement?
Author Affiliations & Notes
  • Daniel Tilia
    Brien Holden Vision Institute, Sydney, Australia
  • Rebecca Weng
    Brien Holden Vision Institute, Sydney, Australia
  • Percy Lazon De La Jara
    Brien Holden Vision Institute, Sydney, Australia
    School of Optometry and Vision Science, University of NSW, Sydney, Australia
  • Mark D. Willcox
    Brien Holden Vision Institute, Sydney, Australia
    School of Optometry and Vision Science, University of NSW, Sydney, Australia
  • Eric B. Papas
    School of Optometry and Vision Science, University of NSW, Sydney, Australia
    Vision Co-operative Research Centre, Sydney, Australia
  • Footnotes
    Commercial Relationships  Daniel Tilia, CIBA Vision (F); Rebecca Weng, CIBA Vision (F); Percy Lazon De La Jara, CIBA Vision (F); Mark D. Willcox, CIBA Vision (F); Eric B. Papas, CIBA Vision (F)
  • Footnotes
    Support  CIBA Vision, The Brien Holden Vision Institute, Vision Co-operative Research Centre
Investigative Ophthalmology & Visual Science April 2011, Vol.52, 6490. doi:
  • Views
  • Share
  • Tools
    • Alerts
      ×
      This feature is available to authenticated users only.
      Sign In or Create an Account ×
    • Get Citation

      Daniel Tilia, Rebecca Weng, Percy Lazon De La Jara, Mark D. Willcox, Eric B. Papas; Is Contact Lens Comfort Influenced By Lens Replacement?. Invest. Ophthalmol. Vis. Sci. 2011;52(14):6490.

      Download citation file:


      © ARVO (1962-2015); The Authors (2016-present)

      ×
  • Supplements
Abstract

Purpose: : Previous reports have indicated contact lens replacement during the day does not improve end of day ocular comfort, when single use hydrogel lenses are used. This study assessed whether the same principle applies to silicone hydrogel lenses.

Methods: : Twenty four participants (Pxs) were instructed to wear new, silicone hydrogel contact lenses for 10 hours on three separate days, with each day corresponding to one stage. During two of the stages, Pxs presented to the clinic after about 5 hours of wear when lenses were removed, then either new lenses were inserted or the same lenses were re-inserted. Pxs were masked to lens condition, and these stages were randomised. For the other stage, lenses were worn uninterrupted for 10 hours. Ocular comfort was assessed using a 1-100 numerical scale at insertion, and after 3, 5, 7 and 10 hours of wear. For those stages where lens wear was interrupted, ocular comfort was also reported prior to lens removal and following lens re-insertion.Mixed linear models were used for statistical analysis

Results: : Relative to insertion, ocular comfort was significantly worse after 10 hours when lenses were worn uninterrupted (p=0.02). While lens removal and re-insertion was associated with a small improvement in comfort relative to uninterrupted wear, the difference was not significant (p>0.05). There were no significant differences between the 3 stages after 10 hours (p >0.05).

Conclusions: : These results confirm that for this silicone hydrogel material lens replacement does not improve end of day ocular comfort. Taken with previous findings, this suggests that irrespective of lens type, end of day discomfort is not primarily caused by lens based deterioration but is more likely due to changes within the eye or its adnexa.

Clinical Trial: : http://www.anzctr.org.au ACTRN12609000430235

Keywords: contact lens 
×
×

This PDF is available to Subscribers Only

Sign in or purchase a subscription to access this content. ×

You must be signed into an individual account to use this feature.

×