A randomised controlled trial carried out in Hong Kong has shown that acupuncture is effective in treating anisometropic amblyopia (‘lazy eye’), and significantly improves the eyesight of children with the disorder. Eighty-eight children with an amblyopic eye were randomly assigned to receive two hours of patching their sound eye daily (the standard treatment), or five daily sessions of acupuncture per week, for 15 weeks. Acupuncture treatment consisted of a standard five-point protocol that was developed specifically for the study. The treatment effect, measured as the visual acuity of the amblyopic eye, improved by an equivalent amount in both groups. However, the percentage of children whose ambylopia was resolved was significantly higher in the acupuncture group (16.7% for patching vs 41.5% for acupuncture). (Randomized controlled trial of patching vs acupuncture for anisometropic amblyopia in children aged 7 to 12 years. Arch Ophthalmol. 2010 Dec;128(12):1510-7).