Comprehensive Review of the Literature on Existing Punctal Plugs for the Management of Dry Eye Disease

Figure 7

Comparison of extended duration plugs. (a) Soft Plug Extended Duration (Oasis)—extended duration temporary (3 months) plug made with a copolymer of glycolic acid and trimethylene carbonate. (b) Vera90 (Lacrivera)—extended duration temporary (3 months) plug made of E-Caprolactone-L-Lactide (PCL) copolymer. (c) VisiPlug (Lacrimedics)—extended duration temporary (6 months) plug made of polydioxanone (PDS).

(a)

(b)

(c)