A child has hypermetropia of +6.00D. At what minimum age is the full correction most safely given without precipitating accommodative spasm, according to standard prescribing guidelines for high hypermetropia in young children?
- A Only after age 12, when the crystalline lens loses some accommodation
- B Half the cycloplegic refraction at first visit, with gradual increase over 6 months
- C Full cycloplegic refraction correction can be given at any age if accommodative esotropia is present, and the full correction is prescribed after cycloplegic refraction, usually from 1–2 years of age ✓
- D Only if the child can subjectively accept the full correction in a refraction room
Correct answer: C. Full cycloplegic refraction correction can be given at any age if accommodative esotropia is present, and the full correction is prescribed after cycloplegic refraction, usually from 1–2 years of age
Explanation
In children with accommodative esotropia and high hypermetropia, the full cycloplegic refraction correction should be prescribed immediately, regardless of age (including infants from 12–18 months), because accommodative esotropia is driven by excessive accommodation to compensate for uncorrected hypermetropia. Prescribing the full cycloplegic refraction eliminates the accommodative demand and corrects the esotropia. Delaying correction or under-correcting risks permanent amblyopia. Children tolerate high plus prescriptions well due to innate accommodative reserve.
Reference: Khurana Comprehensive Ophthalmology, 7th ed.
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