If you are experiencing severe pain in the eye, extremely red eyes, sudden visual loss, or sudden onset of flashing lights or floaters, you should seek immediate professional advice from an optometrist or medical practitioner.

In the case of an acute problem out of hours, there is a 24 hour casualty department at:

• University Hospital, Coventry and Warwick – 0247 696 4800 during normal working hours, or book an online Eye Emergency Referral
• Gloucestershire Royal Hospital – 0300 422 6600

If you are unsure about whether your condition or injury requires emergency treatment, contact NHS Choices on 111.