Sodium Chloride Hypertonicity Ophthalmic Solutioin, 5%. Temporary Relief of Corneal Edema. Sterile 1/2 Fluid Ounce. Contains no mercurial compounds. For over 150 years, Bausch + Lomb has focused on innovation & quality in our eye care products, from contact lenses & solutions to eye drops, ointments, eye vitamins & more When you suffer from corneal edema, Muro 128 (sodium chloride hypertonicity ophthalmic solution, 5%) may offer effective relief. Also available in a 2% formula - Muro 128 (sodium chloride hypertonicity ophthalmic solution, 2%) and an ointment - Muro 128 (sodium chloride hypertonicity ophthalmic ointment, 5%). These products do not contain mercurial compounds such as Thimerosal.