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Soft toric contact lens prescribing in different countries
Nathan Efron1, Philip B Morgan, Magne Helland
1Institute of Health and Biomedical Innovation, and School of Optometry, Queensland University of Technology, 60 Musk Avenue, Kelvin Grove, Queensland 4059, Australia. n.efron@qut.edu.au
Summary
Recent trends show a significant increase in toric soft contact lens fittings, now representing over 35% of soft lens prescriptions. This indicates improved correction for astigmatism among contact lens wearers.
Area of Science:
- Ophthalmology
- Optometry
- Contact Lens Technology
Background:
- Toric soft contact lens designs have advanced significantly in the last decade.
- Understanding current fitting trends is crucial for eye care practitioners.
Purpose of the Study:
- To analyze recent trends in toric soft contact lens fitting using international prescribing survey data.
- To assess the adoption rate of toric soft contact lenses in clinical practice.
Main Methods:
- An international contact lens prescribing survey was conducted annually from 2000 to 2009.
- Practitioners in Australia, Canada, Japan, the Netherlands, Norway, the UK, and the USA recorded data for their first 10 contact lens fits/refits.
Main Results:
- A consistent rise in toric soft lens fitting was observed throughout the survey period.
- Excluding Japan, toric soft lenses constituted over 35% of all soft lens prescriptions by the end of the study.
- Astigmatism of 0.75 D or less may remain uncorrected in many contact lens wearers.
Conclusions:
- Toric soft contact lens fitting has substantially increased, addressing a wider range of astigmatism.
- Demographic and lens wear factors influence toric lens prescription, with older, full-time, and reusable lens wearers more likely to receive them.
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