aracnoid cyst -Will it return ?

I just read your blog and wanted to let you know bout me i am a 33yr old and was born with the cyst
I have now had surgery twice for an arachnoid cyst..
I have had incredible headaches and pain in the right side of the face for years and told that the cyst couldnt be causing it.. When dizzyness and the feeling of falling when i layed down was taking over my life and i slept on the floor

I had a hickmans reservoir put into the cyst in sept in08 ..and drained relief was pretty much soon after..
Headaches not gone but alot less intensity and all vertigo feeling are gone at this stage
then in Feb this year i have lost some sight in the right eye and  showed intercranial pressure again.
the cyst had closed over again.. MRI showed the cyst had reformed and was placing pressure on the optical nerves , ventriculargram scan not pleasant to do showed that the cyst was blocking the flow of the CSF fluid so once again i had the cyst deflated and drained.. Sight has not returned, headaches have not changed still constant varying in intensity.. but my eye is not sore allll the time.. So once again its wait and see .. i am going for another scan in feb..
Be persistant with following up changes,

If it does come back ? has anyone had a full shunt put in for the cyst ?