“Can acupuncture help dry eyes?” was the question posed by researchers in Korea, who undertook a systematic review involving 21 randomised controlled trials, and 1542 eyes. Compared with artificial tears, acupuncture was more effective by several different measures. Further analysis of the data suggests acupuncture is optimally given two to three times per week for 21 to 30 days.
(Therapeutic effects of acupuncture in typical dry eye: a systematic review & meta-analysis. Acta Ophthalmologica 29 October 2020.)