90. To make an Excellent Eye-Water for Redness and light Films, &c. upon the Eye.

MAke some Lime-Water, by pouring a Gallon of Scald∣ing-hot Water upon a Pound, or somewhat more of Quicklime; stir them together, and after some hours decant warily that which is clear. And to a Pound of this Water put half an Ounce (and no more) of choice Verdigrise pulveriz'd: And in a very moderate heat extract a Tincture of a fine, but somewhat dilute, Saphirine colour, (but it ought not to be too deep.) Decant Page  65 this very warily, and let a drop or two of it at a time fall into the Eye, as often as need requires.