Advanced Binocular Vision (ABV) Exam 2 Practice

On the binocular accommodative facility test (BAF), a result of less than 6 cycles per minute indicates what?

Increased accommodative facility Normal accommodative facility Variable accommodative facility Reduced accommodative facility

Correct Answer:

Reduced accommodative facility

Explanation:

Binocular accommodative facility measures how quickly the eyes can switch focus between distances while maintaining clear, single binocular vision. In this test, rapid lens flips create demands on the accommodation–convergence system, and the number of complete cycles per minute reflects how flexibly a person can adjust focus. A result of less than 6 cycles per minute shows reduced accommodative facility—the system is slow to respond to changing focusing demands, indicating accommodative infacility. This can underlie near-work symptoms like eyestrain and fatigue. Increased facility would be unusually fast and not the case here, normal facility would fall within typical ranges, and a variable result would reflect inconsistency rather than a consistently low rate.

Access more questions from this quiz

Continue to Advanced Binocular Vision (ABV) Exam 2 Practice for more practice questions and the full quiz experience.

Access More Questions