NURS 3311 Chapter Notes - Chapter 14: Peripheral Vision, Vitreous Body, Presbyopia
Document Summary
Health assessment chapter 14: eyes structure and function. Eyelids: protect the eye from injury, strong light, and dust. Palpebral fissure: the elliptical open space between the eyelids. Limbus: the border between the cornea and aclera. Canthus: the corner of the eye, the angle where the lids meet. Caruncle: a small, fleshy mass containing sebaceous glands. Tarsal plates: strips of connective tissue that give it shape. Contains: meibomian glands: modified sebaceous glands that secrete an oily lubricating material onto the lids. Conjunctiva: the transparent protective covering over the exposed portion of the eye. Lacrimal apparatus: provides constant irrigation to keep the conjunctiva and cornea moist and lubricated. Extraocular muscles (eoms): give the eye both straight and rotary movement. Each muscle is coordinated with one in the other eye. Movement is coordinated by cranial nerves vi, iv, iii. An asymmetric sphere composed of three concentric coats:
