Dr Shilpa Ghosh, ophthalmologist and cataract surgeon at Drishti Netralaya in Dibrugarh, Assam confirms there's no evidence that garlic, onion, or mustard oil applied to navel improves eyesight. Refractive errors in children need proper evaluation, treatment. Delaying evidence-based care may risk long-term vision health. Regular eye check-ups remain safest preventive approach for growing eyes.