Preserflo Microshunt What is a Preserflo Microshunt? This is a small 8.5mm length implant that is as thick as a human hair. It is made from an inert polymer material. This operation involves cutting through the surface tissue (conjunctiva) of the eye and inserting the implant through the white outer shell of the eye (sclera) and into the front compartment. The implant sits in the front compartment of the eye and extends to the space under the conjunctiva (bleb) to drain fluid out from the eye. Mitomycin-C is applied to the operation site to reduce scarring and increase the success rate of the operation.
https://www.researchgate.net/publication/299531468_The_use_of_polystyrene-_block_isobutylene-_block_styrene_as_a_microshunt_to_treat_glaucoma