Skip to main content

Table 2 Acanthamoeba castellanii cyst viability counts after exposure to different MPS formulations. Cultures containing A. castellanii cysts were co-mixed for varying contact times, stained with Trypan blue, and then transferred to a hemocytometer for microscopic enumeration. A total of nine grids were counted; separate experiments were performed and quantitative analysis performed by two technicians blinded to the treatments. Counts reflect percentage dead cysts of total counted within the collective nine grids; numbers expressed as arithmetic mean ± standard deviation

From: Comparative in vitro effectiveness of a novel contact lens multipurpose solution on Acanthamoeba castellanii

MPS Contact time (min)
15 30 60 90
PBS (sham)
ASP-57 72.8 ± 26.9 96.4 ± 5.1 97.5 ± 3.5 100 ± 0.0
BioTrue 5.6 ± 2.9 15.6 ± 22.1 24.2 ± 22.4 32.9 ± 4.9
Opti Free 23.2 ± 5.8 23.6 ± 2.0 19.9 ± 15.3 51.1 ± 7.9