Certified Paraoptometric (CPO) Practice Exam

Image Description

Question: 1 / 400

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

Density

Focus

Position

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.

Get further explanation with Examzify DeepDiveBeta
Next Question

Report this question

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy