Answer
Repeated or prolonged use can soften and erode the corneal surface, potentially causing clouding and loss of vision.
Sources for this answer
- Minims Proxymetacaine Hydrochloride 0.5% 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.