A recent survey by researchers at the the Centre for Contact Lens Research at the University of Waterloo has shown that nearly 40 percent of people who wear contact lenses keep them in past the manufacturer’s recommended date. More than 189 eye care specialists participated in the study which resulted in 1,654 (60% of the patients were female with an average age of 34) surveys meeting inclusion criteria. 265 of the 1,654 participants wore daily disposable contact lenses, 744 two-week replacement contact lenses 645 used one-month replacement contact lenses. The contact lens manufacturer CIBA Vision sponsored this survey.
The top two reasons for not replacing the contact lenses:
- To save money (26 percent)
- Forgetting which day to replace lenses (51 percent)
The Centre for Contact Lens Research (CCLR) at the University of Waterloo was established in 1988 at the University of Waterloo’s School of Optometry. The CCLR works with industry affiliates like CIBA Vision to investigate the ocular response to contact lenses and other forms of vision correction.
CIBA Vision manufactures several popular contact lenses including: