A friend of mine who is 50 told me that her eye doctor advised her to wear glasses and stop wearing contact lenses as she has been wearing contacts for 20 years and from now on her eyes cannot tolerate contacts. Is it true that if we wear contacts for 20 years plus on daily basis, that around after 50 we may need to wear glasses most of the time? In order to be able to wear contacts longer, and as I am 40, I started wearing glasses most of the time and contacts only some of the time (e.g. when I am going out or once a week when I want to look very pretty). I would not want to be in a situation when I am in my 50s or 60s where I cannot wear contacts even part of the time as I do not look so good in glasses.