Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

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.

View full-text article in PMC

. 2021 May 3;14(3):829–836. doi: 10.1111/cts.12933

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2020 The Authors. Clinical and Translational Science published by Wiley Periodicals LLC on behalf of the American Society for Clinical Pharmacology and Therapeutics.

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

PMC Copyright notice

Effects of two different screens on the stability of tear film. (a–c) show data presented as median and interquartile ranges. The difference values (D‐value) equal to the values of post‐reading minus the baseline values (Δ = post–pre) were compared to evaluate the different effects of the two smartphone screens on the ocular surface. (d–f) show the difference distribution of related detection indexes before and after reading. (post–pre = Δ). ***P ≤ 0.001. eInk, electronic ink; FBUT, fluorescein break‐up time; NIBUT, noninvasive break‐up time; OLED, organic light‐emitting diode.