The amount of accommodation change in vergence accommodation is determined by which ratio?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $25.99Unlock all

Study for the Advanced Binocular Vision Exam 2 with expertly crafted quizzes and detailed explanations. Enhance your understanding and excel in your exam with our well-structured resources. Get ready for your success!

Multiple Choice

The amount of accommodation change in vergence accommodation is determined by which ratio?

Explanation:
Convergence can drive the lens to change focus, a cross-link in the visual system called convergence accommodation. The amount of that accommodation change is captured by the CA/C ratio: how many diopters of accommodation are elicited for each unit of convergence (per prism diopter or per degree). In other words, CA/C tells you how strong the accommodation response is when the eyes converge. This is different from the opposite direction, where accommodation influences vergence, described by the AC/A ratio. So for understanding how much accommodation changes due to vergence, CA/C is the measuring ratio.

Convergence can drive the lens to change focus, a cross-link in the visual system called convergence accommodation. The amount of that accommodation change is captured by the CA/C ratio: how many diopters of accommodation are elicited for each unit of convergence (per prism diopter or per degree). In other words, CA/C tells you how strong the accommodation response is when the eyes converge. This is different from the opposite direction, where accommodation influences vergence, described by the AC/A ratio. So for understanding how much accommodation changes due to vergence, CA/C is the measuring ratio.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy