I have use contact since i was 13 years old and , two years ago i started to sleep with them i only get them out every 3 months or so to trow them away and get new ones ,its like that every three months , i know there are some that are prepared to be able to have them in as long , but mine are not aim to take it out every night but it irritates my eyes when i do ,it feels better when i sleep with them i think my eyes got use to it..
thanks for helping..
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