NURS 612 Exam 1 Study Questions and Correct Answers

Lacrimal gland located in the temporal region of the superior eyelid and produces tears that moisten the eye. Eye muscles superior, inferior, medial, and lateral rectus muscles Superior and inferior oblique muscles Eye nerves III (oculomotor) IV (trochlear) VI (abducens) Conjunctiva a clear, thin mucous membrane Sclera the dense, avascular structure that appears anteriorly as the white of the eye Cornea constitutes the anterior sixth of the globe and is continuous with the sclera Optically clear Uvea the iris, ciliary body, and choroids Lens biconvex, transparent structure located immediately behind the iris. Retina the sensory network of the eye. Eye changes in older adults progressive weakening of accommodation (presbyopia) Risk factors for cataract formation family history Steroid medication use Exposure to ultraviolet light Cigarette smoking Diabetes mellitus Aging Legal blindness (Snellen chart) Vision not correctable to better than 20/200 Blurred vision vs. Diplopia burred vision represents a problem with visual acuity