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The amount of time you can, or should, wear your contact lenses for each day varies from person to person and is likely to change regularly. When you begin to wear lenses, or restart after a long time without them, it’s best to only wear them for a few hours a day. It’s also best to alternate days of wearing contact lenses and glasses to give your eyes time to adjust. As your eyes do adjust to the contacts, you can wear them for longer and longer periods of time. This is equally true of people who are wearing their first pair of contact lenses or long time contact lens wearers who are wearing a new type of lens. It can be difficult to acclimatise to contact lenses initially and that can prevent people from understanding when their contact lenses should and shouldn’t be worn. There are some signs that your eyes need a rest and the key to looking after eye health is to pay close attention as you get used to your lenses. The best rule to work to is that if you even think for a moment that the lenses need to come down, then you should do exactly that. Once you are used to your contact lenses, it will become far easier to feel the subtle signals that indicate your lenses need to be removed. However, you shouldn’t ever wear them for more than 12 hours in a single day since your eyes need to breath and lenses prevent that. Contact lenses should also not be worn within 30 minutes of waking or going to sleep for the same reason. The effects are less severe with modern lenses, but to give your eyes time to relax, it’s best to still stick to those guidelines. There are now lenses that are specifically designed for long term continuous wear. If you have lenses like that, then your optician would be the best source of information about how long it is safe to wear them. When you first receive your lenses, regardless of what type they are, your optician will be able to give you guidance about wearing your specific lenses which will be suitable for your eyes and vision problems. Often people can wear their contact lenses for far longer each day than they should simply because taking them out and putting them in can be seen as a hassle. However, in addition to giving your eyes a rest, wearing lenses for too long can create a build up in the eye which can irritate the surface of the eye. This irritation can be exacerbated if the contact lenses are not properly cared for. Wearing the lenses for longer than they were intended can have the same effects. Using contact lenses in any manner that is counter-indicated by either the packaging or your optician can harm your eyes and possibly lead to infections in the eye.
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