The recipe is from the Master Cleanse by Stanley Burroughs. The formula is:
5 parts distilled water
2 parts best grade honey
1 part apple cider vinegar (good brand)
Mix together and store in bottle. It need not be refrigerated as contents will not spoil. If eyes are in good condition, keep them that way by regular use as no harm can ever come by using it. It has a strong smarting effect for a moment, then the eyes clear and feel very good after each use.
The above is directly from his book. I use Tropical Traditions apple cider vinegar and I sterile everything. I use a dropper bottle and put 4-5 drops in each eye. Have a wet washcloth handy; it stings in a good way. Aloha