title: A survey on the knowledge and attitudes of anaesthesia providers in the United States of America, United Kingdom and Singapore on visual experiences during cataract surgery.
abstract: OBJECTIVE
  To assess the knowledge, beliefs and attitudes of anaesthesia providers on the patients' possible intraoperative visual experiences during cataract surgery under local anaesthesia.
  
  
  METHODS
  Anaesthesia providers from the Ophthalmic Anaesthesia Society (USA); British Ophthalmic Anaesthesia Society (UK); Alexandra Hospital, National University Hospital, Tan Tock Seng Hospital, Singapore General Hospital and Changi General Hospital (Singapore) were surveyed using a structured questionnaire.
  
  
  RESULTS
  A total of 146 anaesthesiologists (81.6%), 10 ophthalmologists (5.6%) and 23 nurse anaesthetists (12.8%) responded to the survey. Most respondents believed that patients would experience light perception and many also felt that patients might encounter other visual sensations such as movements, flashes, colours, surgical instruments, hands/fingers and the surgeon during the surgery. A significantly higher proportion of anaesthesia providers with previous experience of monitoring patients under topical anaesthesia believed that patients might experience the various visual sensations compared to those who have not previously monitored. For both topical and regional anaesthesia, anaesthesia providers who routinely counsel their patients are (1) more likely to believe that preoperative counselling helps or (2) were previously told by patients that they could see intraoperatively and/or that they were frightened by their visual sensations. These findings were statistically significant.
  
  
  CONCLUSIONS
  The majority of anaesthesia providers in the USA, UK and Singapore are aware that patients may experience a variety of visual sensations during cataract surgery under regional or topical anaesthesia. Those who have previously managed patients undergoing cataract surgery under topical anaesthesia are more likely to believe this compared to those who have not.
authors.affiliation: Tan Tock Seng Hospital, The Eye Institute, National Healthcare Group, Singapore.
authors.forename: C S H
authors.initials: CS
authors.lastname: Tan
authors.forename: C M
authors.initials: CM
authors.lastname: Kumar
authors.forename: G L
authors.initials: GL
authors.lastname: Fanning
authors.forename: Y C
authors.initials: YC
authors.lastname: Lai
authors.forename: K G
authors.initials: KG
authors.lastname: Au Eong
mesh_terms: D000287:Administration, Topical; D000765:Anesthesia, Conduction; D000776:Anesthesiology; D001291:Attitude of Health Personnel; D002387:Cataract Extraction; D016009:Chi-Square Distribution; D003625:Data Collection; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D007432:Intraoperative Period; D008297:Male; D012846:Singapore; D006113:United Kingdom; D014481:United States; D014796:Visual Perception