Presbyopia Accommodation & Convergence MCQ Quiz | Refraction & Binocular Vision

Welcome to the specialized MCQ quiz on Presbyopia, Accommodation, and Convergence, a core component of the Refraction and Binocular Vision syllabus for MBBS students. This quiz is designed to test your understanding of the physiological mechanisms governing the eye’s focusing ability at near distances and the coordination between the two eyes. You will encounter 25 questions covering topics from the near triad, ciliary muscle function, and lens changes in presbyopia to convergence anomalies and their clinical implications. This assessment will help you consolidate your knowledge for both theoretical exams and clinical practice. After submitting your answers, you can review your performance and download a complete PDF of all questions with their correct answers for future revision.

1. What is the primary physiological change in the crystalline lens that leads to presbyopia?

2. The near triad consists of accommodation, convergence, and which other physiological response?

3. According to Helmholtz’s theory of accommodation, contraction of the ciliary muscle leads to:

4. What is the standard unit of measurement for the amplitude of accommodation?

5. A high AC/A ratio is most commonly associated with which condition?

6. Which muscle is the primary agonist for ocular convergence?

7. In an uncorrected hyperope, the accommodative effort required for distance vision is:

8. Which of the following drugs induces cycloplegia (paralysis of accommodation)?

9. The range of accommodation is defined as the distance between:

10. Proximal convergence is stimulated by:

11. A 50-year-old emmetropic patient presents with difficulty reading small print. This condition is best described as:

12. Which part of the autonomic nervous system mediates accommodation?

13. The “add” power in a bifocal lens for a presbyopic patient is always a:

14. Convergence insufficiency is characterized by:

15. An accommodative spasm can lead to a condition known as:

16. The onset of presbyopic symptoms is often delayed in individuals with:

17. Which component of convergence is responsible for maintaining eye alignment on a near target by correcting for retinal disparity?

18. The main advantage of progressive addition lenses (PALs) over traditional bifocals is:

19. A 45-year-old patient requires +1.50 D of accommodation to read at their desired distance. If their amplitude of accommodation is 2.50 D, what is their accommodative reserve?

20. What is the typical age of onset for symptomatic presbyopia in an emmetropic individual?

21. The measurement of the Near Point of Convergence (NPC) is used to assess:

22. Tonic convergence refers to:

23. In presbyopia, the near point of accommodation:

24. A patient reports that their near vision is worse in dim light. This is a common symptom of presbyopia because:

25. Which surgical procedure is NOT a treatment for presbyopia?