Disclosed is an ocular sensor (110) for detecting at least one analyte in eye water. Said ocular sensor (110) comprises at least one sensor material that is designed to change at least one optical property in the presence of the at least one analyte. The ocular sensor (110) further comprises at least one sensor chip which is fitted with at least one integrated optical detector (122) for detecting the optical property. Also disclosed is a measuring system (166) for detecting at least one analyte in eye water. Said measuring system (166) encompasses an ocular sensor (110) according to the invention as well as an evaluation unit (168) which is designed to exchange data with the sensor chip (118).
