AMIODARONE (Cordarone) is a medicine used for cardiac arrhythmias. It is highly effective for rapid heartbeats. Amiodarone has been associated with corneal opacities. A characteristic 'whorl' is seen on the lower third of the cornea, the window to the eye. These are usually not visually significant, but in unusual circumstances Amiodarone may need to be discontinued if vision declines.