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.
Effects of different smartphone screens on ocular redness during reading. (a, b) show data presented as median and interquartile ranges; (c, d) show the difference distribution of related detection indexes before and after reading (post–pre = Δ). *P ≤ 0.05, ***P ≤ 0.001. eINK, electronic ink; ns, not significant; OLED, organic light‐emitting diode.
