Certified Paraoptometric (CPO) Practice Exam 2025

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Gear up for the Certified Paraoptometric (CPO) Exam 2025. Study with interactive quizzes and multiple-choice questions with comprehensive explanations. Excel in your exam with our tailored preparation tools!

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How much does 1.00 prism diopter deviate light at a distance of 1 meter?

1 centimeter
2 centimeters
0.5 centimeters
3 centimeters

The correct answer is: 1 centimeter

The correct answer to how much 1.00 prism diopter deviates light at a distance of 1 meter is indeed 1 centimeter. This relationship is based on the definition of prism diopters, where 1 prism diopter is described as causing a deviation of light by 1 centimeter at a distance of 1 meter from the prism's apex. This is a fundamental principle in optics concerning how prisms manipulate the path of light. Understanding this concept is crucial for those in the field of optometry, as it directly relates to how prisms are used in clinical settings to address various visual alignment issues. The principle applies universally to prism calculations and plays an important role in assessing and prescribing optical corrections for patients.