Figure 2

Breakdown of surgeons. (A) A scatter diagram of the surgeons and his/her lifetime experience of retinal surgeries. (B) Graph showing the proportion of PPV and SB cases performed relative to years of experience of retinal surgery. The proportion of SB surgeries increases with increasing years of experience with a peak at 28–30 years and then gradually decreases. (C) Number of surgical cases by current activity. Surgeons with current activity of 31–40 cases/surgeon performed the most retinal detachment surgeries by both PPV and SB surgery. (D) Number of surgeons by average number of annual retinal surgeries. For PPV, the number of surgeons decreased with an increase of the average annual number of retinal surgeries. While in SB, an average annual number of retinal surgeries had a peak of 21–30 cases/year.