Demo Dose® Optc Drops - 10 ml by Nasco Healthcare $5.95 PN01078 Demo Dose® Optc Drops - 10 ml / PN01078 / Cart Title Demo Dose® Optc Drops - 10 ml Product ID PN01078 CheckoutType Cart Add to cart Teach students the proper technique to administer ophthalmic medication. Contains distilled water. For instructional use only. Not for human or animal use.