Certified Paraoptometric Practice Test

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Prepare for the Certified Paraoptometric Test! Study using flashcards, multiple choice questions, and detailed explanations. Get ready for your exam and boost your optometric skills!

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What is the specific name for the position of the cylinder in a lens?

Density
Focus
Position
Axis

The correct answer is: Axis

The specific name for the position of the cylinder in a lens is the Axis. The Axis indicates the orientation of the cylinder in the lens and is measured in degrees from 1 to 180. This measurement helps to determine the direction in which the astigmatism is corrected within the lens. The other options are not the correct terms for the position of the cylinder in a lens: - Density refers to the darkness of a lens, such as in sunglasses or tinted lenses. - Focus relates to where an image is directed to most sharply in the eye. - Position is a broad term and does not specifically denote the orientation of the cylinder in a lens.