how long has he had this? is the eye red ? what color is the discharge?
Hello Mike F
this sounds like a bacterial conjunctivitis. Typically I prescribe antibiotics such as the tobra you have. That is the correct concentration, typical dose is 1 or 2 drops 4 times daily. If this is not responding in 2 days, he needs to be evaluated, Regards XXXXX
same dose is correct, minor difference is 4 times a day versus every 4 hours could technically be 4-6 times a day.