If the horizontal bars of the plus signs are not aligned, you must:

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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

If the horizontal bars of the plus signs are not aligned, you must:

Explanation:
Aligning the instrument’s axis is essential when the orientation marks on the plus signs aren’t lined up. The horizontal bars show the cylinder’s orientation, so you rotate the axis grip until those bars line up with the reference direction. This puts the cylindrical power on the correct meridian, which is crucial for accurate refraction results. If the marks stay misaligned, it indicates the axis isn’t set correctly, and adjusting the axis grip corrects it. Tightening screws would only help if parts are loose, not when the issue is the axis orientation; ignoring alignment or replacing the instrument isn’t appropriate for this situation.

Aligning the instrument’s axis is essential when the orientation marks on the plus signs aren’t lined up. The horizontal bars show the cylinder’s orientation, so you rotate the axis grip until those bars line up with the reference direction. This puts the cylindrical power on the correct meridian, which is crucial for accurate refraction results. If the marks stay misaligned, it indicates the axis isn’t set correctly, and adjusting the axis grip corrects it. Tightening screws would only help if parts are loose, not when the issue is the axis orientation; ignoring alignment or replacing the instrument isn’t appropriate for this situation.

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