Figure 1 Toxicity determination in a stationary, confluent cell culture using MTT labelling. No significant cytotoxicity of bevacizumab could be seen in choroidal endothelial cells (A), ARPE19 (B), and RGC5 (C). However, a statistically non‐significant trend (p<0.05) towards less cell viability was seen in ARPE19 cells when a bevacizumab concentration of 2.5 mg/ml was used. At higher bevacizumab concentrations CEC cell viability was slightly reduced (non‐significant).