Lots of people think a lens can get behind the eye and be lost forever. That absolutely can't happen: there's no way for a contact lens to go behind your eye. There is a thin, transparent membrane, called conjunctiva that covers the sclera (white part) and inside of your eyelids is well attached to the sidewalls of the eye socket. This forms a seal which prevents contact lenses (as well as dust and other ‘foreign’ material) passing to the back of the eye. Sometimes contact lenses ‘hide’ beneath eyelids. If you wear soft contact lenses, they will tend to center automatically on the cornea. If you wear rigid gas permeable (RGP) lenses, you may need to manipulate a displaced lens through the eyelid. In rare instances, a RGP lens may adhere by suction to the conjunctiva. First, apply wetting solution to the lens and wait about a minute. Then try to move the lens while gently pressing on one edge. If that doesn't work, you can try to very gently lift up under one edge to break the seal. Or go see your eye doctor. If a contact lens adheres repeatedly, it is not fitted correctly and should be replaced.

Never heard of somebody losing a contact lens in the back of their head, but lots of people think a lens can get behind the eye and be lost forever. That absolutely can't happen: There's no way for a contact lens to go behind your eye. There is a thin, transparent membrane, called conjunctiva that covers the sclera (white part) and inside of your eyelids is well attached to the sidewalls of the eye socket. This forms a seal which prevents contact lenses (as well as dust and other ‘foreign’ material) passing to the back of the eye. Sometimes contact lenses ‘hide’ beneath eyelids. If you wear soft contact lenses, they will tend to center automatically on the cornea. If you wear rigid gas permeable (RGP) lenses, you may need to manipulate a displaced lens through the eyelid. In rare instances, a RGP lens may adhere by suction to the conjunctiva. First, apply wetting solution to the lens and wait about a minute. Then try to move the lens while gently pressing on one edge. If that doesn't work, you can try to very gently lift up under one edge to break the seal. Or go see your eye doctor. If a contact lens adheres repeatedly, it is not fitted correctly and should be replaced.

I dunno. I have the same question right now because I kinda rubbed my right eye the wrong way [with my contacts on]. After rubbing, I noticed that my right eye sight has gone blurry [as if there's no contact lens there] and I felt an itch under my right upper eyelid, indicating that my contact lens kinda slipped underneath it [happened several times before] So I closed my right eye and rolled my eyes several times. But when I opened them my right eye is still blurry and I don't feel the contact lens ANYWHERE in my right eye anymore. I don't know where it went, or what I should do, or if I should be screaming bloody hell for a doctor right now. Help?

It happened to me today...and I freaked out for a while... but then I tried closing my eye and rolled my eye around, to get an idea of where it was... then I gently lifted the eye lid as back as I could and finally saw the lens. I use soft contact lenes so they do that if I rub my eye with them on.

This is a common mis conception. Contact lens cannot get behind your eye balls!! You would have to use some type of device to push it back there. Some answers to other common contact lens questions can be found here, like can you go swimming in contacts? http://www.bifocal-contact-lens-info.com/Articles/contact_lens_FAQ.htm