 [ Symptoms ] iv inserted in jugular vein is causing vision problems and pain in back of head [ Disease ] in my opinion you got an infection or a simple allergic reaction that caused eustachian tube dysfunction if your symptoms are worsning then it is probably allergy since i suppose you are already on antibiotics do you were lenses i really can not prescribe any treatment as it may interfer with your current kidney condition i recommend you take your doctor opinion good luck