Term
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Definition
| opacity of the lens of they eye that develops slowly with aging and gradually obstructs vision |
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Term
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Definition
| infection or retention cyst of a meibomiam gland, showing as a beady nodule on the eyelid |
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Term
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Definition
| infection of the conjunctive, "pink eye" |
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Term
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Definition
| abnormal soft exudates visible as gray-white areas on the ocular fundus |
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Term
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Definition
| ratio of the width of the physiologic cups to the width of the optic disc, normally half or less |
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Term
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Definition
| unit of strength of the lens settings on the opthalmoscope that changes focus on the eye structures |
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Term
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Definition
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Term
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Definition
| benign deposits on the ocular fundus that show as round yellow dots and occur commonly with aging |
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Term
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Definition
| lower eyelid loose and rolling outward |
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Definition
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Definition
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Term
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Definition
| area of keenest vision at the center of the macula on the ocular fundus |
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Term
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Definition
| a group of eye disease characterized by increased intraocular pressure |
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Term
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Definition
| (stye) red, painful pustule that is a localized infection of hair follicle at eyelid margin |
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Term
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Definition
| the abnormal white rim of sclera visible between the upper eyelid and the iris when a person moves the eye downward |
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Term
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Definition
| round, darker area of the ocular fundus that mediates vision only from the central visual field |
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Term
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Definition
| abnormal finding of round red dots on the ocular fundus that are localized dilations of small vessels |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| "nearsighted", refractive error in which near vision is better than far vision |
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Term
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Definition
| involuntary, rapid, rhythmic movement of the eyeball |
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Term
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Definition
| oculus dexter, or right eye |
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Term
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Definition
| paller of the optic disc due to partial or complete death of optic nerve |
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Term
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Definition
| area of ocular fundus in which blood vessels exit and enter |
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Term
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Definition
| oculus sinister, or left eye |
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Term
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Definition
| stasis of blood flow out of the ocular fundus, sign of increased intracranial pressure |
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Term
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Definition
| decrease in power of accomdation that occurs with aging |
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Term
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Definition
| triangular opaque tissue on the nasal side of the conjunctiva that grows toward the center of the cornea |
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Term
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Definition
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Term
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Definition
| two movable shades that further protect eye from injury, strong light, and dust. The upper eyelid is the larger and more mobile one |
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Term
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Definition
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Term
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Definition
| the elliptical open space between the eyelids |
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Term
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Definition
| corner of the ye, the angle where lids meet |
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Term
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Definition
| thin mucous membrane folded like an envelope between the eyelids and the eyeball |
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Term
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Definition
| and covers the iris and pupil |
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Term
| superior, inferior, lateral and medial rectus |
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Definition
| The four straight, or rectus, muscles are |
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Term
| Superior and inferior muscles |
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Definition
| two slanting, or oblique muscles |
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Term
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Definition
| provides constant irrigation to keep conjunctiva and cornea moist and lubricated |
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Term
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Definition
| there are _____ muscles that are attached to the eyeball's orbit |
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Term
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Definition
| human brain can tolerate seeing only |
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Term
| three cranial nerves: VI, IV, and II |
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Definition
| movement of extraocular muscles are stimulated by |
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Term
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Definition
| abducens nerve, innervated the lateral rectus muscle |
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Term
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Definition
| trochlear nerve, innervates the superior oblique muscle |
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Term
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Definition
| oculomotor nerve, innervate all the rest--the superior, inferior, medial rectus, and oblique muscles |
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Term
| sclera, choroid, and retina |
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Definition
| The eye is a sphere composed of three concentric coats |
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Term
| transparent vitreous body |
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Definition
| this is inside the retina |
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Term
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Definition
| tough, protective, white covering that is continously anterior with the smooth transparent cornea |
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Term
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Definition
| very sensitive to touch, blinks (corneal reflex) |
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Term
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Definition
| nerve that carries afferent sensation into the brain and the facial nerve carries the message that stimulated the blink |
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Term
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Definition
| dark pigmentation to prevent light from reflecting internally and is heavily vascularized to deliver blood to retina. |
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Term
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Definition
| functions as a diaphragm, varying the operning at its pupil to control the amount of light admitted into the retina |
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Term
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Definition
| biconvex disc located just posterior to the pupil |
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Term
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Definition
| visual receptive layer of the eye in which light waves are changed into nerve impulses and surrounds the vitreous humor |
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Term
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Definition
| area in which fibers from the retina converge to form the optic nerve |
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Term
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Definition
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Term
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Definition
| the image formed on the retina is upside down and reversed from its actual appearance in the outside world |
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Term
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Definition
| normal constrictions of the pupils when brightlight shines on the retina |
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Term
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Definition
| one eye is exposed to bright light and so the pupil constricts |
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Term
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Definition
| simultaneous constriction of the other pupil |
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Term
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Definition
| reflex direction of the eye toward an object attracting a person's attention |
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Term
| alcohol, drugs, fatique, and inattention |
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Definition
| ocular movement can be impaired by |
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Term
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Definition
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Term
| opthalmologist or optometrist |
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Definition
| if visions is worse than 20/30 |
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Term
| handheld vision screener that has various sizes of print |
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Definition
| people who are over 40 or who have trouble test for near vision with a |
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Term
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Definition
| hold the card in good light about 14 inches from the eye and test each eye separately with their |
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Term
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Definition
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Term
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Definition
| if the person can see the object as you do in confrontation |
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Term
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Definition
| mild weakness of alignment |
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Term
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Definition
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Term
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Definition
| yellowing of the sclera (jaundice) |
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Term
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Definition
| tests children with familar objects (cake,car,) |
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Term
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Definition
| test boys for color vision |
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Term
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Definition
| this occurs mostly in asian childrens and it gives a false appearance of malalignment |
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