Patient and practitioner compliance with silicone hydrogel and daily disposable lens replacement in Canada

Richter, Doris, Dumbleton, Kathy, Guthrie, Sarah, Woods, Craig, Jones, Lyndon and Fonn, Desmond 2010, Patient and practitioner compliance with silicone hydrogel and daily disposable lens replacement in Canada, Canadian journal of optometry, vol. 72, no. 1, pp. 10-19.

Attached Files
Name Description MIMEType Size Downloads

Title Patient and practitioner compliance with silicone hydrogel and daily disposable lens replacement in Canada
Author(s) Richter, Doris
Dumbleton, Kathy
Guthrie, Sarah
Woods, CraigORCID iD for Woods, Craig
Jones, Lyndon
Fonn, Desmond
Journal name Canadian journal of optometry
Volume number 72
Issue number 1
Start page 10
End page 19
Total pages 9
Publisher Canadian Association of Optometrists
Place of publication Ottawa, Ont.
Publication date 2010-02
ISSN 0834-2245
Keyword(s) silicone hydrogel
daily disposable
contact lens
replacement frequency
Summary Purpose: To assess current recommendations by optometrists for replacement frequency (RF) of silicone hydrogels (SH) and daily disposable (DD) contact lenses in Canada, determine rates of non-compliance with recommendations by both the optometrist and patient, and investigate reasons for non-compliance.

Methods: Survey packages were sent to optometrists in Canada who had agreed to participate. Patients completed survey questions regarding demographics and contact lens wearing patterns, including recommended and actual contact lens RF. Optometrists were asked to provide lens information and their recommendation for RF. Fifty-eight optometrists returned 654 surveys, of which 578 were eligible for analysis.

Results: Seventy percent of patients were female with a median age of 32 years. Lens type distribution was 18% DD, 35% two-week SH, and 47% one-month SH. Six percent were worn for extended wear. Daily wear median wearing time was 12 hours/day, a median of five days/week for DD, seven days/week for SH (two-week and one-month). Optometrists’ recommendations were non-compliant with the manufacturers’ recommended RF for 6% of DD, 35% of two week, and 2% of one-month patients. Patients were non-compliant with recommendations from both the manufacturer and optometrist for 12% of DD, 43% of two-week, and 31% of one-month lens wearers. The most common reason for non-compliance was forgetting which day to replace lenses. Fifty-six percent thought a reminder system would help with compliance. A higher proportion of compliant patients followed the RF because of confidence in their optometrist.

Conclusions: Optometrists generally recommended RFs consistent with manufacturers’ recommendations for DD and one-month SH lenses but often recommended longer intervals for two-week SH lenses. Patients were most compliant when wearing DD lenses and least compliant when wearing two-week SH lenses. Communication between the patient and optometrists concerning the risks of non-compliance, or initiating a reminder system might improve compliance.
Language eng
Field of Research 119999 Medical and Health Sciences not elsewhere classified
Socio Economic Objective 970111 Expanding Knowledge in the Medical and Health Sciences
HERDC Research category C3.1 Non-refereed articles in a professional journal
Persistent URL

Document type: Journal Article
Collections: Faculty of Health
School of Medicine
Connect to link resolver
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 0 times in TR Web of Science
Scopus Citation Count Cited 0 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 171 Abstract Views, 2 File Downloads  -  Detailed Statistics
Created: Tue, 25 Sep 2012, 14:30:46 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact