This seem to be a very well known study! My wife shared that when she was attending a class, the lecturer shared TCM study on dry eyes. Recently a non-physician friend brought up the same study in conversation.

Link to Traditional Chinese Medicine in Dry Eye Syndrome

I thought would be interesting to share some quotes.

The findings demonstrate the usefulness of TCM treatment in treating the commonly seen dry eye syndrome in Singapore. In this study, acupuncture does not demonstrate any additional therapeutic effect over and above herbal medication alone. In fact, for TBUT, Group 1 (TCM Herbal Medicine alone) has in fact shown a better result than the combined TCM methods. The result findings suggest that TCM herbal medicine may be used as an alternative medicine to treat dry eyes in Singapore.