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Use of silicone hydrogel contact lenses by Australian optometrists

Woods, Craig A. and Morgan, Philip B. 2004, Use of silicone hydrogel contact lenses by Australian optometrists, Clinical and experimental optometry, vol. 87, no. 1, pp. 19-23, doi: 10.1111/j.1444-0938.2004.tb03141.x.

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Title Use of silicone hydrogel contact lenses by Australian optometrists
Author(s) Woods, Craig A.ORCID iD for Woods, Craig A. orcid.org/0000-0002-5942-6247
Morgan, Philip B.
Journal name Clinical and experimental optometry
Volume number 87
Issue number 1
Start page 19
End page 23
Total pages 5
Publisher Wiley - Blackwell Publishing
Place of publication Oxford, England
Publication date 2004-01
ISSN 0816-4622
1444-0938
Keyword(s) fitting habits
silicone hydrogel contact lenses
survey
Summary Background: Prior to the launch of silcone hydrogel (Si-H) materials in Australia in 1999, only 1.6 per cent of lenses were prescribed on a continuous wear basis.

Methods: One thousand surveys were distributed randomly to practitioners in Australia during January 2000, 2001 and 2002 (total surveys 3,000). Each anonymous survey requested data about the next 10 patients fitted with contact lenses, including date, age, gender, new fitting or refitting, lens material type, lens design, frequency of replacement, modality of wear, uses per week and care regimen.

Results: Twenty per cent (599) were returned, reporting data on 5,976 fittings. A total of 710 fittings used Si-H contact lenses (11.9 per cent), which represented 18.6 per cent of all soft lens fittings. During the three years, the proportion of practitioners prescribing Si-H lenses increased from 42.2 to 52.5 per cent. In 2000, 43.8 per cent were daily wear, which decreased to 32.2 per cent by 2002. The solution system of choice for daily wear lenses was multipurpose solutions (98.4 per cent); the only alternative was hydrogen peroxide systems. Continuous wear represented 11.7 per cent of all fittings, ofwhich 85.7 per cent were Si-H, 3.0 per cent RGP lenses and 11.3 per cent conventional hydrogels. For continuous wear, 79.0 per cent of fittings were to existing wearers, whereas for daily wear, 59.4 per cent were existing wearers. More males were prescribed Si-H continuous wear contact lenses, while females were more likely to be prescribed Si-H on a daily wear basis.

Discussion: Si-H contact lenses were introduced to the Australian market as a continuous wear contact lens, yet many practitioners use this product for daily wear with multipurpose solutions. By 2002, more practitioners were prescribing Si-H contact lenses for continuous wear than in 2000, suggesting a growing confidence in that product for that mode of wear. A comparison with an earlier survey shows there is an increase in continuous wear from 1.6 per cent to 11.7 per cent over a five-year period.
Language eng
DOI 10.1111/j.1444-0938.2004.tb03141.x
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 C1.1 Refereed article in a scholarly journal
Persistent URL http://hdl.handle.net/10536/DRO/DU:30047441

Document type: Journal Article
Collection: School of Medicine
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