"i have had the implanon for over 4 years now with in the 1st years i gain over 59 pound. i feel as if this birth control caused me to go blind in my left eye after two years on it i notice that u couldn&#039;t see out my left i so i went to eye doctor she sent me to an specialist they told me i had fluid on the brain i was put in the hospital for 2 day to get in spinal  tab... then to found out that i 100 percent loss my vision in my left eye. it was  something end tumor i forgot the name.. i never had a problem until this birth control i notice one i had got it i had a lot of head aches.. my ears sound like i had water are something on them... to lost my vision tho... i hate i ever made this decision.. i&#039;m looking for an lawyer...now"