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 Child who can see in the dark Healthy eyes on the digital world 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 SPONSORED: So many prizes! Click through and see our fantastic competitions. advertisement Get a quote Momentum - save up to 35% on healthcare 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 News New York Ebola victim fooled "enhanced" airport screening Columnists The Pistorians – when love is blind Medical Can sleep apnoea affect your sex life? Medical How selfies help dermatologists diagnose skin conditions Medical Drug-resistant TB remains a crisis Medical Post-heart attack depression more common in women From our sponsors Exam stress – a challenge for the whole family Eduloan offers affordable education finance Vote for 2014 Hill's Pet Slimmer of the Year Live healthier Strenghten your immunity » Keep your immunity strong Immune system boosters Boost your family's immunity 5 immune boosters in your kitchen You don’t need a handful of vitamins and supplements to keep your body healthy, check out these five immune boosting foods you probably already have in your kitchen. Depression » Depression Depression and ageing Teen depression Depression: do you know the signs? One of the key roles you can play in the health of someone who is depressed or suffers from anxiety is to make sure they get the help they need. Here's what you need to know.