Differential Diagnosis for Arrhythmia with Yellow Halo on the Eyes

• Single most likely diagnosis
  • Digoxin: This is the most likely cause because digoxin toxicity can lead to visual disturbances, including blurred vision and halos around lights, which can sometimes be perceived as yellow. This is due to the effect of digoxin on the retina and optic nerve.
• Other Likely diagnoses
  • Amiodarone: While amiodarone is known for its high iodine content and can cause a variety of side effects, including effects on the eyes such as optic neuropathy and macular degeneration, it is less commonly associated with the specific symptom of yellow halos compared to digoxin. However, its broad range of side effects makes it a consideration.
• Do Not Miss (ddxs that may not be likely, but would be deadly if missed.)
  • None specifically fit this category for the symptom of yellow halos in the context of arrhythmia treatment, as the primary concern with these medications is their cardiac effects rather than ocular side effects leading to immediate danger.
• Rare diagnoses
  • Flecainide: Flecainide is less likely to cause visual disturbances such as yellow halos compared to digoxin or even amiodarone. Its side effect profile primarily includes cardiac effects, and while it can have neurological side effects, visual disturbances like yellow halos are rare and not typically highlighted as a common issue.