Home > Medical > Eye Health > FAQs 15 December 2008 Can I wear disposable lenses longer? Lenses should not be worn for longer than the recommended wearing period. This will prevent discomfort, dryness, blurred vision and allergic reactions. 0 Pin It A journey through the human eye: how we see Eyecare myths you probably believed Lenses should not be worn for longer than the recommended wearing period. The purpose of replacing contact lenses on a frequent basis is to prevent discomfort, dryness, blurred vision and allergic reactions that can result from a build-up of protein and lipid deposits on the lenses. As the deposits age and chemically change on the lens, they contribute to these irritations. The changes in the chemical composition of the deposits also increase the probability that bacteria may adhere to a contact lens, increasing the health risk even without any subjective deterioration in comfort. Check with your eye care practitioner for the lenses and lens replacement frequency that are most appropriate for you. More in Medical Worn out cantact lenses? More: Eye HealthFAQs advertisement Get a quote Selfmed - the one with the apple Momentum - save up to 35% on healthcare Medihelp - quality, affordable medical scheme cover advertisement Read Health24’s Comments Policy Comment on this story 0 comments Add your comment Thank you, your comment has been submitted. Logout Comment 0 characters remaining Share on Facebook Logout Comment 0 characters remaining Share on Facebook Loading comments... Other news Parenting Overeating learned in infancy Lifestyle Fastest face transplant done in 3 weeks Medical Scientists map foot fungi Parenting Doctors 'print' on baby's airway tube, save his life Lifestyle Carbon footprint of shoes damaging environment Parenting Abused children at risk for obesity as adults From our sponsors Hill's Science Plan Canine Mini range What is Diabetic Neuropathy? There are more than 200 different viruses which can cause a cold A clinically proven skin care range is now available Live healthier Be vitamin-smart » A-Z of vitamins What is vitamin C? Ask the expert Why we need vitamin D Even in a country with an abundance of sunlight you might have a vitamin D deficiency. Here's why. Beat acne » Stars with scars Acne tips Skincare Myths about acne Through the ages, there have been many myths about acne. We list the myths and give you the facts.