tear. a drop of the saline, watery fluid continually

organ illustration circle brand screenshot text poster cartoon presentation advertising purple eye art diagram lighting hand logo tear drop saline watery fluid continually secreted lacrimal glands between surface eyelid render accessory anatomy apparatus biological biology canal canaliculi caruncle cavity cleaning cornea diagram duct education eye care eyelid gland health human iris lachrymal lacrimal glands look medical medicine nasal nasolacrimal ocular ophthalmology optic optical organ producing puncta punctum pupil retina sac science sclera sensory structure tear vision