A punctum plug adapted to be inserted into the punctum opening of an eye and which is adapted to be transported into the vertical portion of the canaliculus or into the ampula to occlude the punctum opening and vertical portion of the canaliculus is shown. The punctum plug, or implant, comprises...http://www.google.com/patents/US5723005?utm_source=gb-gplus-sharePatent US5723005 - Punctum plug having a collapsible flared section and method
