Muro 128 5% Sterile Ophthalmic Solution - 0.5 fl oz bottle by Bausch & Lomb Muro 128 Sodium Chloride Hypertonicity Ophthalmic Solution is used for patients who suffer from corneal edema and its associated symptoms. Muro 128 solution can offer effective relief. Recommend Muro 128 solution for daytime use; it contains no mercurial compounds such as Thimerosal. Follow up with preservative-free Muro 128 for nighttime use (to be applied either every 3 to 4 hours, or as directed).