Terminology Quiz 1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Abrasion | Scraped area of corneal surface accompanied by loss of superficial tissue.
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| Accomodation | The ability of the crystalline lens to adjust power to provide retinal focus of images of objects closer than infinity.
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| Acuity | Measure of an eyes ability to distinguish object details and shape. Assessed by the smallest identifiable object that can be seen at a specified distance (usually 20 ft or 16 in)
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| Adnexia Oculi | Structures surrounding the eyeball, includes the eyelids, eyebrows, tear drainage system, orbital walls, and orbital contents
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| Albinism | Lack of pigment in the iris and choroid, results in reddish pupils and iris; usually accompanied by poor vision, light sensitivity, and involuntary oscillating eye movements
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| Amblyopia | Loss of vision without any apparent disease of the eye; decreased vision without detectable anatomical damage to the retina on visual pathways.
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| Ametropia | A refractive error in which the eye, when in a state of rest, does not focus the image of an object upon the retina. Includes hyperopia, myopia, and astigmatism.
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| Aniridia | (Iris hypoplasia); Incomplete formation of the iris; associated with glaucoma, nystagmus, sensitivity to light, and poor vision
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| Aniseikonia | Unequal retinal image sizes in the two eyes, usually from different refractive errors
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| Anisicoria | Unequal pupil size (difference of 1 mm or more)
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| Anomaly | A deviation from normal, especially of a body part
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| Anophthalmia | Absence of the eyeball
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| Anterior Chamber | Fluid-filled space inside the eye between the iris and the innermost corneal surface.
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| Antigen | Any substance that stimulates production of antibodies; part of the immune system.
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| Aphakia | Absence of the eyes crystalline lens.
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| Aqueous Humor | Clear, watery fluid that fills the space between the back surface of the cornea and the front surface of the vitreous, bathing the lens. Produced by the ciliary processes; nourishes the cornea, iris, and the lens and maintains intraoccular pressure.
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| Arcus Senilis | Ring-shaped, grayish deposit of fat near the limbus. Typically occurs after age 60, or in young patients with abnormally high blood fat levels.
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