Determination system including a computing device (i) obtaining information related to an eye of a target person from a plurality of data sources and (ii) making a determination of a predetermined matter related to the target person based on at least part of the information. The plurality of data sources include two or more of a sensor included in a contact lens of the target person, a sensor included in a storage container of the contact lens, a measurement device which carries out measurement related to the eye of the target person, tear fluid of the target person, a storage solution of the contact lens and, a diagnostic process of the target person.
