Waiting times and patient satisfaction in the accident and emergency department.

alkali and we always double evert the upper lid and remove all particulate matter with a forceps. Secondly, we recommened that the pH of the conjunctiva should be tested before and after irrigation with these lenses. In our experience more than a litre of saline or Ringer's lactate is frequently required with alkali burns before the pH returns to normal and occasionally several litres are required. The use of these irrigating lenses in A&E departments should be encouraged and I congratulate Dr Fernandes for bringing these lenses to our attention.