The present invention provides a kind of suitable monomer using what Ophthalmologic apparatus, and when being copolymerized with polymerizable monomers such as hydrophilic monomers, surface hydrophilicity, oxygen transmission rate are high, mechanical strength is appropriate. The polysiloxane monomer for confirming phosphorous vinegar choline base is able to solve the technical problem, so as to complete the present invention.本發明提供一種適合應用於眼科設備的單體，其與親水性單體等聚合性單體共聚時，表面親水性、透氧率高、機械強度適當。確認到含磷醯膽鹼基的聚矽氧烷單體能夠解決所述技術問題，從而完成了本發明。
