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Hi, Dr. Stan here to help. I'm sorry your husband is having so many medical problems. The brown material may be infection or dried blood. Discuss this with Pulmonary doctor. The vision problem may be cataract and should be checked by an Ophthalmologist. The seeping may or may not be related to the nose issue, but you should contact his Cardiovascular surgeon to discuss this also. I hope this is helpful. I am here to answer any additional questions you may have. Please leave a positive rating for my response as this is how I am compensated for my response.
You are most welcome and I hope your husband feels better soon.