Ace the Certified Ophthalmic Assistant Exam 2025 – Eye-Opening Success Awaits!

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Question: 1 / 400

Which of the following cannot be used for color vision testing?

Pseudoisochromatic plates

Hardy-Rand-Ritter plates

Nagel anomaloscope

Fly test

The Fly test cannot be used for color vision testing because it is not a recognized method or tool for assessing color vision deficiencies. The Fly test involves assessing the acuity of a patient in a way that is unrelated to color perception.

On the other hand, options A, B, and C are valid tools for color vision testing:

A. Pseudoisochromatic plates are commonly used for screening color vision deficiencies, such as Ishihara plates.

B. Hardy-Rand-Ritter plates are also a type of pseudoisochromatic plates used for assessing color vision.

C. The Nagel anomaloscope is a sophisticated instrument used for detailed color vision testing, particularly for determining the type of color vision deficiency a patient may have.

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