A paranasal sinus fluid treatment apparatus, comprising: a paranasal sinus access implant device (200, 700, 800, 906, 970) configured to be implanted in a human to provide fluid access to a paranasal sinus, the paranasal sinus access implant device comprising: a head (206, 702, 802, 914) configured to be disposed between the medial canthus and the medial side of an adjacent eyeball when the paranasal sinus access implant device is implanted; and an internal passage (210, 738, 838, 916) providing fluid access through the paranasal sinus access implant device to a paranasal sinus when the paranasal sinus access implant device is implanted, the internal passage being accessible through an opening in the head; a paranasal sinus fluid manipulation tool (900, 972), the paranasal sinus fluid manipulation tool comprising: a fluid container (902, 974); a paranasal sinus fluid connection engagement structure (908, 950) to fluidly connect the paranasal sinus fluid manipulation tool with the paranasal sinus access implant device, the paranasal sinus fluid connection engagement structure being configured to be disposed in the palpebral fissure; a fluid transmission structure (904, 976) configured to transmit fluid between the fluid container and the paranasal sinus access implant device; and characterized by: the paranasal sinus fluid connection engagement structure being in engagement with the head, with the paranasal sinus fluid connection engagement structure and the head in surface contact (920, 960) around the entire periphery of the opening; and the paranasal sinus fluid manipulation tool being manipulable to perform at least one of the following fluid manipulations when the paranasal sinus access implant device is implanted to provide fluid access to a paranasal sinus: (i) introduction of fluid from the fluid container into the internal passage for delivery to a paranasal sinus and (ii) applying suction to the internal passage for aspiration of fluid from a paranasal sinus through the internal passage. a paranasal sinus access implant device (200, 700, 800, 906, 970) configured to be implanted in a human to provide fluid access to a paranasal sinus, the paranasal sinus access implant device comprising: a head (206, 702, 802, 914) configured to be disposed between the medial canthus and the medial side of an adjacent eyeball when the paranasal sinus access implant device is implanted; and an internal passage (210, 738, 838, 916) providing fluid access through the paranasal sinus access implant device to a paranasal sinus when the paranasal sinus access implant device is implanted, the internal passage being accessible through an opening in the head; a head (206, 702, 802, 914) configured to be disposed between the medial canthus and the medial side of an adjacent eyeball when the paranasal sinus access implant device is implanted; and an internal passage (210, 738, 838, 916) providing fluid access through the paranasal sinus access implant device to a paranasal sinus when the paranasal sinus access implant device is implanted, the internal passage being accessible through an opening in the head; a paranasal sinus fluid manipulation tool (900, 972), the paranasal sinus fluid manipulation tool comprising: a fluid container (902, 974); a paranasal sinus fluid connection engagement structure (908, 950) to fluidly connect the paranasal sinus fluid manipulation tool with the paranasal sinus access implant device, the paranasal sinus fluid connection engagement structure being configured to be disposed in the palpebral fissure; a fluid transmission structure (904, 976) configured to transmit fluid between the fluid container and the paranasal sinus access implant device; and a fluid container (902, 974); a paranasal sinus fluid connection engagement structure (908, 950) to fluidly connect the paranasal sinus fluid manipulation tool with the paranasal sinus access implant device, the paranasal sinus fluid connection engagement structure being configured to be disposed in the palpebral fissure; a fluid transmission structure (904, 976) configured to transmit fluid between the fluid container and the paranasal sinus access implant device; and the paranasal sinus fluid connection engagement structure being in engagement with the head, with the paranasal sinus fluid connection engagement structure and the head in surface contact (920, 960) around the entire periphery of the opening; and the paranasal sinus fluid manipulation tool being manipulable to perform at least one of the following fluid manipulations when the paranasal sinus access implant device is implanted to provide fluid access to a paranasal sinus: (i) introduction of fluid from the fluid container into the internal passage for delivery to a paranasal sinus and (ii) applying suction to the internal passage for aspiration of fluid from a paranasal sinus through the internal passage.