Review Article
Comprehensive Review of the Literature on Existing Punctal Plugs for the Management of Dry Eye Disease
Figure 3
Horizontal canalicular plugs. (a) Collagen plug (Lacrimedics) that is meant to last for about two weeks. (b) Temporary extended duration plug (VisiPlug by Lacrimedics) made of polydioxanone does not swell with moisture and lasts about 6 months. (c) Permanent canalicular plug (Herrick plug by Lacrimedics) is shaped like a golf tee (photos courtesy of http://www.lacrimedics.com).
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(b) |
(c) |