In the near power calculation example, which addition value is used to compute near power?

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Prepare for the Certified Paraoptometric Assistant (CPOA) Exam. Study with extensive flashcards and multiple choice questions with explanations. Enhance your skills and knowledge to succeed.

Multiple Choice

In the near power calculation example, which addition value is used to compute near power?

Explanation:
Near power is found by adding the near addition to the distance refractive power. The near addition accounts for the eye’s need for extra focusing to read at close distances, so you simply sum the two values to get the near power. In this example, the near addition used is +2.50 diopters, which is why that value is applied to compute the near power. The other numbers are just other possible near additions, but the scenario shown uses +2.50, making it the correct one for this calculation.

Near power is found by adding the near addition to the distance refractive power. The near addition accounts for the eye’s need for extra focusing to read at close distances, so you simply sum the two values to get the near power. In this example, the near addition used is +2.50 diopters, which is why that value is applied to compute the near power. The other numbers are just other possible near additions, but the scenario shown uses +2.50, making it the correct one for this calculation.

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