ABO VOCABULARY
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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| Deviation from a single focus of light rays emanating from one source | show 🗑
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| The ability of the eye to adjust focus for varying distances | show 🗑
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| Descriptive of a lens capable of refracting light without creating a rainbow effect | show 🗑
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| show | Acuity
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| Difference in plus power between the reading and distance portions of a multifocal lens | show 🗑
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| show | Amblyopia
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| show | Ametropia
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| A condition in which the image of an object as seen by one eye differs so much in size or shape from that seen by the other eye that the two images cannot be fused into a single impression | show 🗑
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| A condition in which the refractive error of one eye significantly differs from that of the other | show 🗑
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| show | Anterior Chamber
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| thinnest edge of a prism | show 🗑
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| show | Aphakia
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| show | Aspheric
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| show | Astigmatism
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| The meridian of cylinder power in a spherocylinder lens | show 🗑
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| Thickest edge of a prism | show 🗑
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| show | Base Curve
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| show | Beam
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| Pertaining to vision with both eyes | show 🗑
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| Instrument used to measure thickness, calibrated in fifths and tenths of a millimeter | show 🗑
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| The angle at either end of the slit between the eyelids | show 🗑
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| A condition when the crystalline lens of the eye becomes opaque | show 🗑
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| One, which originates at birth | show 🗑
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| The lens has become either solid and shrunken or soft and liquid | show 🗑
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| Any cataract in its early stages | show 🗑
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| show | Mature Cataract
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| show | Senile Cataract
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| show | Traumatic Cataract
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| show | Choroid
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| Distortion of an optical image produced by the dispersion of light passing through a lens and generally characterized by blurred, multicolored edges | show 🗑
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| show | Cilary Body
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| The refractive error which results in two points of focus falling behind the retina. +1.00 +2.00 x090 | show 🗑
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| show | Compound Myopic Astigmatism
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| Light sensitive cells in the retina responsible for color vision, daytime vision, and the central portion of the visual field (6 million) | show 🗑
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| The clear membrane that lines the eyelids and covers exposed surface of the eyeball | show 🗑
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| show | Conjunctivitis
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| show | Cornea
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| show | Crown Glass
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| A transparent, colorless body suspended in the front part of the eyeball, between the aqueous humor and vitreous humor. Its function is to bring light rays to focus on the retina. | show 🗑
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| show | Cyclopegia
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| show | Decentration
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| show | Diffusion
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| Unit of measurement of the refractive power of a lens | show 🗑
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| show | Diplopia
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| Defect in a lens which causes a straight line to appear curved | show 🗑
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| show | Divergent
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| The refractive condition of a normal eye. When the eye is at rest, the image of distant objects is brought to focus on the retina. | show 🗑
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| A tendency for one eye to deviate of the visual axis toward the other eye | show 🗑
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| Actual deviation of one eye toward the visual axis of the other eye (cross eyed) | show 🗑
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| show | Exotropia
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| show | Far Point
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| A glass of high refractive index 1.65 containing lead | show 🗑
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| show | Focus
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| A small depression in the retina, at the back of the eye. It is part of the macula adapted for the clearest vision | show 🗑
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| The power of coordination by which the images received by the two eyes become a single image | show 🗑
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