A 6-year-old hypermetropic child (+4.50 D in both eyes) develops esotropia that is fully corrected by wearing his spectacles. The AC/A ratio is normal. This is classified as:
- A Non-accommodative esotropia
- B Partially accommodative esotropia
- C Fully accommodative esotropia ✓
- D Microtropia with monofixation syndrome
Correct answer: C. Fully accommodative esotropia
Explanation
Fully accommodative esotropia occurs when uncorrected hypermetropia forces excessive accommodation to maintain a clear image; the excess accommodative convergence (via the AC/A ratio) causes the eyes to turn in. Complete optical correction with plus lenses eliminates the need for excess accommodation and fully straightens the eyes. Surgery is not required if spectacles achieve full correction; the goal is also to prevent amblyopia by ensuring spectacles are worn full-time.
Reference: Khurana Comprehensive Ophthalmology, 7th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.