Amazon has the 0.5oz Amazon Basic Care Redness Reliever Eye Drops ( tetrahydrozoline HCl 0.05% / zinc sulfate 0.25%) on sale for $2.46 - 5% off with Subscribe & Save (can cancel anytime) = $2.34 with free shipping on $25+ or with Prime.

• Generic of Visine A.C. Itchy Eye Relief ($7 on Amazon)