Ophthalmic drainage device and preparation method for the same

A preparation method for an ophthalmic drainage device, comprising:

• placing a raw drainage tube comprising a core mold in a first organic solution containing a monomer containing an aldehyde group, so that an amino group in the drainage tube is enabled to react with the aldehyde group to obtain a first drainage tube, wherein the raw drainage tube comprises a tube wall and a drainage channel defined by the tube wall, the tube wall comprises a multifunctional polymer containing hydrophilic groups and the amino group, and the hydrophilic groups comprise a carboxyl group and a hydroxyl group;
• and
• placing the first drainage tube in a second alkaline organic solution containing a monomer containing an epoxy group, so that the reaction of the epoxy group is enabled to obtain the ophthalmic drainage device comprising:
• a tube wall and a drainage channel defined by the tube wall, wherein
• the tube wall comprises a biocompatible material comprising a polymer containing an ether group, an ester group, and an imino group;
• the biocompatible material in the ophthalmic drainage device has an average cross-linking degree of 60% to 90%;
• and
• in a 25° C. anhydrous ethanol solution, the ophthalmic drainage device has a relative density of 40% to 60%.