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Cards In This Set
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One Inch is equal to how many millimeters?
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25.4 mm
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Also known as lazy eye, is a vision development disorder in which an eye fails to achieve normal visual acuity, even with prescription eyeglasses or contact lens.
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Amblyopia
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Transparent lens located behind the iris and the pupil. It is flexible and has about 17 diopters of power.
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Crystalline Lens
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Polycarbonate index of refraction
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1.590
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The raised disk on the retina at the point of entry of the optic nerve, lacking visual receptors and so creating a blind spot
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Optic Disc
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Where in the eye is the greatest density of cones found?
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Fovea
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Technical term for double vision.
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Diplopia
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The distance from the center of the bridge of the nose to the center of each pupil.
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Monocular PD
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What is another name for the lensometer?
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Focimeter
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What are the 3 things that happen when light hits a lens?
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1. Absorbtion2. Transmission3. Reflection
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What are the 3 things that an affect the power of a lens?
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1. Index of refraction of the material2. Thickness of the lens3. Relationship between the front and the back of a lens
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What is the standard index of refraction used in the Optical Industry?
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1.530
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What is the speed of light?
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186,000 miles per second
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The automatic adjustment of the focus of the eye by flattening or thickening of the lens.
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Accommodation
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Two general conditions resulting from an imbalance of the extra ocular muscles.
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Phorias & Tropias
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