DS133 Pharmacology: Eye & Ear Conditions and Treatment

DS133 Pharmacology: Eye & Ear Conditions and Treatment The eye and the visual system make the experience of sight possible. External Anatomy Conjunctiva A mucous membrane which lines the inside of the eyelids and covers the sclera. Aids in lubricating the eye through production of mucus and tears* Lacrimal System Lacrimal gland: • located at the edge of the eyelid. • responsible for tear production to keep the eyes lubricated and to remove dust. ‘Crying’ involves tears dripping from the eyes - the lacrimal system cycles tears across the eyes and drains them out through tear ducts located on the inner side of the eyes near the nose. External / Protective Layer Cornea: Transparent component at the front of the eye that covers the iris pupil and anterior (front most) chamber of the eye