An implant (110) is disclosed for detecting at least one analyte (126) in a body fluid, particularly eye water. Said implant (110) is designed to be implanted into a tissue layer and/or an eye chamber of a patient and comprises a hydrogel matrix (110) containing at least one hydrogel (114). The implant further comprises sensor particles (116) which are dispersed in the hydrogel matrix (110). The sensor particles (116) have at least one sensor matrix (120) with a sensor matrix material (122) as well as at least one sensor material (124).
