A device for use during an intravitreal injection procedure, the device including: a main body portion with a handle at one end for holding the device; and, a contact portion at the other end for contacting the surface of an eye; wherein the contact portion includes a distance indicator for indicating a pre-determined distance from a reference point on the eye. The light sheet has a light exit surface. When information processing terminal PC sends to server SV a request for copying the downloaded contents, server SV sends the copy control data of the relevant contents as a reply.