Figure 4.
Effects of different smartphone screens on blink frequency during reading. Data are presented as median and interquartile ranges. *P ≤ 0.05, ***P ≤ 0.001. eInk, electronic ink; ns, not significant; OLED, organic light‐emitting diode.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.