Answer
Systemic exposure from procedural ocular use is expected to be very low, but regular or prolonged exposure can affect thyroid function, particularly in premature babies and neonates.
Sources for this answer
- Povidone Iodine 5% w/v eye drops, solution — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.