Pediatric amblyopia treatment is most effective when started before which age range?

• A. 0-3 years
• B. 4-6 years
• C. 7-9 years
• D. 10-12 years

Answer: (C)

Visual system plasticity during the early years is what makes amblyopia treatment most effective. Therapies like patching or penalization rely on the brain reweighting neural connections in the visual cortex, and this reorganization happens most readily during the brain’s sensitive period for vision. That window is strongest in early childhood and begins to narrow as children grow, with the best responses seen when treatment starts before about 7–9 years of age. Starting earlier means greater potential for significant improvement in visual acuity, while initiating treatment after this period tends to yield smaller gains.