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. 1998 Sep;82(9):1083–1089. doi: 10.1136/bjo.82.9.1083

Figure 5  .

Figure 5  

(A) The OptiMed implant is made up of a silicone tube with a PMMA plate. The "flow restricting" element of this device is housed within the rectangular box situated at the end of the tube within the plate (scale bar = 1 cm). (B) Schematic drawing of the OptiMed implant's "flow restricting" unit which is made up of multiple microtubules providing a pressure gradient governed by Poiseuille's formula.