title: Objective structured assessment of cataract surgical skill.
abstract: OBJECTIVE
  To evaluate the Objective Structured Assessment of Cataract Surgical Skill scoring system.
  
  
  METHODS
  An objective performance rating tool was devised. This instrument is comprised of standardized criteria with global rating and operation-specific components, each rated on a 5-point Likert scale. The total potential score was 100. Complete phacoemulsification cataract extraction operations were recorded through the operating microscope of surgeons with a range of experience (group A, <50 procedures; group B, 50-249 procedures; group C, 250-500 procedures, and group D, >500 procedures). These were then scored by independent expert reviewers masked to the grades of the surgeons. The U test was used to evaluate statistical significance.
  
  
  RESULTS
  We evaluated 38 surgical videotapes of 38 surgeons (group A, 11 surgeons; group B, 10 surgeons; group C, 5 surgeons; and group D, 12 surgeons). Mean +/- SD overall scores were as follows: group A, 32.0 +/- 5.3; group B, 55.0 +/- 12.6; group C, 89.0 +/- 4.7; and group D, 90.0 +/- 11.1. Statistically significant differences were found between groups A and B (P = .002) and groups B and C (P = .003), but not between groups C and D (P>.99).
  
  
  CONCLUSIONS
  The Objective Structured Assessment of Cataract Surgical Skill scoring system seems to have construct validity with cataract surgery and, thus, may be valuable for assessing the surgical skills of junior trainees.
authors.affiliation: Department of Ophthalmology, Royal Surrey County Hospital, Guildford, England. drgmsaleh@yahoo.co.uk
authors.forename: George M
authors.initials: GM
authors.lastname: Saleh
authors.forename: Vinod
authors.initials: V
authors.lastname: Gauba
authors.forename: Arijit
authors.initials: A
authors.lastname: Mitra
authors.forename: Andre S
authors.initials: AS
authors.lastname: Litwin
authors.forename: Andrew K K
authors.initials: AK
authors.lastname: Chung
authors.forename: Larry
authors.initials: L
authors.lastname: Benjamin
mesh_terms: D002983:Clinical Competence / Q000592:standards*; D003162:Competency-Based Education / Q000379:methods; D004503:Education, Medical, Graduate / Q000592:standards*; D004521:Educational Measurement / Q000379:methods*; D006801:Humans; D007396:Internship and Residency; D009885:Ophthalmology / Q000193:education / Q000592:standards*; D018918:Phacoemulsification / Q000193:education*; D013647:Task Performance and Analysis; D014741:Video Recording