Eye Flashcards
What cranial nerve innervates the superior/medial/inferior rectus muscles and the inferior oblique?
CN III (Oculomotor)
Which cranial nerve innervates the lateral rectus muscle of the eye?
CN VI (Abducens)
The superior oblique muscle (of the eye) is innervated by CN __
IV (Trochlear)
Pupillary CONSTRICTION is sympathetic/Parasympathetic from CN __
Parasympathetic, CN III
Pupillary DILATION is sympathetic/parasympathetic? Where does this nerve arise?
Sympathetic, T1 and T2
Unequal pupils
Anisocoria
A collection of symptoms that include eye fatigue, weakness, pain, headache, dim vision, lacrimation. Caused by prolonged periods of intense focusing
Asthenopia
Double vision
Diplopia
Abnormal elevation of the eyelid, white sclera shows above the iris. Hyperthyroidism is classic cause
Stare
A strong dislike of light
Photophobia
Drooping of the eyelid
Ptosis
Misalignment of the eye (Ex: one eye is abducted)
Strabismus (Exotropia)
Similar to strabismus, but is not overtly apparent. May be unmasked by the cover/uncover test
Phoria
An accumulation of normal cellular byproducts and debris. Small yellow or white deposits on the retina around the macula
Drusen bodies
Lipid residue, “Yellow flecks” inside eye. Most common cause is diabetes.
Hard exudate
___ cards test color vision
Ishihara
Nearsightedness (inability to focus on distant objects)
Myopia
Farsightedness (inability to focus on near objects)
Hyperopia
Variations of the corneal curvature in which all portions of the visual field are not in focus at one time
Astigmatism