Amiodarone-induced corneal deposits

Area of Science:

• Cardiology
• Ophthalmology
• Pharmacology

Background:

• Amiodarone (Cordarone) is an antiarrhythmic drug investigated for treating ventricular arrhythmias.
• Corneal deposits are a known side effect of amiodarone therapy.

Purpose of the Study:

• To investigate the occurrence, characteristics, and reversibility of corneal deposits associated with amiodarone treatment.
• To correlate deposit severity with amiodarone dosage and treatment duration.

Main Methods:

• Observation of 27 patients undergoing amiodarone therapy since 1977.
• Documentation of corneal deposit stages (mild, moderate, severe) in the corneal epithelium basal cell layer.
• Monitoring of visual acuity and deposit regression after drug discontinuation.

Main Results:

• Corneal deposits were observed in 27 patients, correlating with amiodarone dosage and treatment duration.
• Deposits were located in the corneal epithelium basal cell layer.
• Vision impairment was rare; deposits regressed within weeks to 1.5 years after amiodarone cessation.

Conclusions:

• Amiodarone-induced corneal deposits are a common, dose-dependent side effect.
• These deposits are typically reversible upon discontinuation of amiodarone.
• Ophthalmological monitoring is advisable for patients on long-term amiodarone therapy.