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28 Cards in this Set

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Strabimus
Eye misalignment caused by extraocular muscle imbalance: one fovea is not directed at the same object as the other.
Snellen Chart
Chart used for testing visual acuity.
Retina
Light sensitive nerve tissue lining the inner surface of the posterior chamber of the eye.
Ptosis
Drooping of the eyelid.
Pupil
Variable-sized black circular opening in the center of the iris that regulates the amount of light that enters the eye.
Presbyopia
Refractive condition in which there is a diminished power of accommodation arising from loss of elasticity of the crystalline lens, as occurs with aging. Usually becomes significant after age 45.
Photophobia
Abnormal sensitivity to, and discomfort from, light.
Peripheral vision
Side vision; vision elicited by stimuli falling on retinal areas distant from the macula.
Optic Nerve (CN-II)
Largest sensory nerve of the eye; carries impulses for sight from the retina to the brain.
Optometrist
Doctor of optometry (OD) specializing in vision problems, treating vision conditions with spectacles, contact lenses, low vision aids and vision therapy, and prescribing medications for certain eye diseases.
Optician
Professional who makes and adjusts optical aids, e.g., eyeglass lenses, from refraction prescriptions supplied by an opthalmologist or optometrist.
Ophthalmoscope
Illuminated instrument for visualizing the interior of the eye (especially the fundus).
Nystagmus
Involuntary, rhythmic side-to-side or up and down (oscillating) eye movements that are faster in one direction than the other.
Myopia
Nearsightedness, can not see clearly in the distance.
Lens
Focuses light on the retina.
Lacrimal gland
Produces tears. Located at the upper, outer eye.
Iris
Pigmented muscle tissue lying behind the cornea that gives color to the eye (e.g., blue eyes) and controls amount of light entering the eye by varying the size of the pupillary opening.
Hyphema
Blood in the anterior chamber of the eye. This is a medical emergency. The blood visible behind the cornea and over the iris and pupil.
Subconjunctival hemorrhage
Blood beneath the conjunctiva on the "white of the eye" (sclera). This is usually self-limiting.
Vitreous humor
Transparent, colorless gelatinous mass that fills the rear two-thirds of the eyeball, between the lens and the retina.
Auricle, Pinna
External ear
Ossicles
Middle ear blones: incus, malleous, stapes
Vestibulocochlear nerve (CN-VIII), also called the Aucostic nerve
Provides for the sense of hearing and equilibrium
Otorrhea
Discharge from the ear.
Battle's sign
Ecchymosis over the Mastoid processes behind the ears. It is a late sign of basilar skull fracture.
Raccoon's eyes
Bilateral periorbital ecchymosis. It is a late sign of basilar skull fracture.
Rhinitis
a runny nose
Epistaxis
Nosebleed