Prevalence of cannula dislocation during cataract surgery: a survey

Aim: To investigate the prevalence of cannula dislocation during cataract. Method: A survey was carried out online via a link sent to members of the UKISCRS, ESCRS and readership of Eye News®. Results: Five hundred and fifty one responses were obtained. 84% of respondents had experienced dislocation of the cannula with 78.04% seeing harm due to this. 50.37% indicated that the last time this occurred there was ocular damage. 22.95% indicated that a cannula dislocation occurred on average once per year, 38.43% experienced it twice per year, 15.66% responded that it occurred 3 times per year, while 6.92% stated that it occurred 4 or more times per year. Conclusion: Cannula dislocation happens not infrequently and ocular harm occurs frequently when this occurs. It is likely that that harm is minimal and therefore the issue is underreported. Further work is required it attempting to prevent avoidable harm from this complication.