What does the procedure involve?

Bleb needling is usually done under local anaesthetic in the outpatient clinic. Drops are used to numb the front surface of the eye, followed by an injection in the skin around the eye that makes the area numb for a few hours and may temporarily affect your vision. A fine needle is used to break down the scar tissue wall of the bleb to improve drainage of the aqueous humour. An anti-scarring drug is then injected to help prevent further scarring. At the end, an antibiotic and steroid injection may be given to reduce the risk of infection and inflammation.