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| A refractive error that causes distorted and blurred vision to both far and near objects due to a cornea that is oval shaped. |
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| An instrument used to measure hearing acuity quantitatively for the various frequencies of sound waves. |
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| The junction of the eyelids at either corner of the eye. |
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| Wedges firmly together so as to be immoveable. |
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| The dropping of liquid into a body cavity. |
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| The washing of a body canal with a flowing solution. |
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| An instrument used to examine the external ear canal and tympanic membrane. |
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| A decrease in the elasticity of the lens that occurs with age, resulting in a decreased ability to focus on close objects. |
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| The deflection or bending of light rays by a lens. |
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| A thin, semi transparent membrane between the external ear canal and the middle ear that receives and transmits sound waves. Also known as the eardrum. |
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