VR Training Efficacy  Inclusion Criteria:  Trainee ophthalmologist in collaborating institution. Agree to undertake simulation procedure assessments Agree to undertake and complete the intensive VR simulation training course. Performed 0 MSICS as primary surgeon and assisted or part-performed less than 10 MSICS cases  Exclusion Criteria:  • Trainee who performed 1 or more MSICS cataract surgeries as primary surgeon and assisted or part-performed 10 or more  Construct Validity  Inclusion Criteria  The first cohort is novice MSICS surgeons having performed 0 MSICS procedures as primary surgeon and assisted in less than 10. The second cohort is proficient MSICS surgeons having performed a minimum of 1000 MSICS procedures  Exclusion Criteria  • MSICS surgeons having performed 1 or more MSICS cataract surgeries as primary surgeon and assisted or part-performed 10 or more; or MSICS surgeons who have performed less than 1000 MSICS procedures as primary surgeon.