Abstract
Purpose
To evaluate the relationship between compliance with replacement frequency (RF) and
contact lens (CL)-related problems in silicone hydrogel (SiHy) wearers.
Methods
501 SiHy wearers from seven optometry offices completed surveys regarding their lens
wear and any CL related problems which they may have experienced in the preceding
12 months. File review was subsequently conducted at their optometry offices to confirm
the information provided.
Results
49% of respondents were wearing 2-week replacement (2WR) and 51% 1-month replacement
(1MR) SiHy lenses. 67% wore their lenses for longer than the manufacturers’ recommended
RF (MRRF) and 60% for longer than their optometrist's recommended RF (ORRF). The mean
RF was 2.6× the MRRF for 2WR and 1.5× for 1MR wearers (p < 0.001) with median values of 31 and 37 days, respectively. Twenty-three percent reported
signs or symptoms consistent with potential complications relating to CL wear. This
rate was significantly higher for wearers who were non-compliant with the ORRF than
compliant wearers (26% versus 18%, p = 0.028). It was also higher for those multipurpose solution users who reported never/almost
never rubbing and rinsing their lenses when compared with those who did this every
night (29% versus 17%, p = 0.007).
Conclusions
Two thirds of the SiHy wearers did not comply with the MRRF and 2WR wearers stretched
the replacement interval of their lenses to a greater degree than 1MR wearers. Failing
to replace lenses when recommended and failing to rub and rinse lenses were associated
with a higher rate of patient-reported CL problems.
Keywords
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Article info
Publication history
Published online: April 14, 2011
Identification
Copyright
© 2011 British Contact Lens Association. Published by Elsevier Inc. All rights reserved.
