‘My eyes flew out of my head’: A GP’s encounter with a patient who saw yellow

Dr David Ringelblum was working as a GP in Melbourne in the late 1990s when a patient turned up with yellow vision.
“This woman was probably around 30 and came in to see me saying, ‘I just feel generally unwell, and everything looks a bit hazy and yellow,’” Dr Ringelblum says.
“I had vague recollections of a lecture in pharmacology that talked about digoxin toxicity that included yellow vision.”
Dr Ringelblum started investigating the patient’s history for answers.