Ocular changes in patients undergoing long-term desferrioxamine treatment

Area of Science:

• Ophthalmology
• Hematology
• Endocrinology

Background:

• Thalassaemia causes iron overload, necessitating treatment with desferrioxamine.
• Desferrioxamine treatment can lead to potential side effects, including retinal dysfunction.

Purpose of the Study:

• To investigate the incidence and potential causes of minor retinal function alterations in young patients with thalassaemia and iron overload undergoing desferrioxamine therapy.

Main Methods:

• Retinal function was assessed in a cohort of young patients with thalassaemia and iron overload.
• Patients were treated with subcutaneous desferrioxamine infusions.
• Correlation analysis was performed between retinal function changes, desferrioxamine dosage, ferritin levels, and results of extended glucose tolerance tests.

Main Results:

• Minor alterations in retinal function were observed in a subset of patients.
• The occurrence of these retinal changes did not correlate with desferrioxamine dosage or serum ferritin levels.
• A significant association was found between retinal function abnormalities and abnormal extended glucose tolerance test results.

Conclusions:

• Abnormalities in glucose metabolism, as indicated by the extended glucose tolerance test, are associated with retinal function changes in thalassaemia patients treated with desferrioxamine.
• Retinal function monitoring in these patients should consider glucose metabolism status.
• Further research is warranted to elucidate the mechanisms linking glucose intolerance and desferrioxamine-induced retinal changes.