GLO:84PE/01sep21:aos14680-fig-0001.jpg PHOTO (COLOR): 1 (A) The MET ONE A2400 optical particle counter probe (black arrow) was positioned 16 cm above the model eye to measure particle concentration during each procedure (B) Mean particle concentration during phacoemulsification - sculpting (C) Mean particle concentration during phacoemulsification - quadrant removal (D) Mean particle concentration during pars plana vitrectomy.n = 5. Phacoemulsification and pars plana vitrectomy (PPV) are common intraocular surgical procedures which utilize high-speed devices. High-speed devices have the potential to generate aerosols across an air-fluid interface yet to date there has been no study quantifying whether these procedures generate aerosols. [Extracted from the article]