2. Nelson J, Craig J, Jones, L, et al. (2017) Dry Eye Disease - What is it, why does it occur and how can it be diagnosed and treated? TFOS. [Accessed Mar 2023]
Click https://www.tearfilm.org/ckfinder/userfiles/files/Tfos_4%20pager%20-%20DEWSII%20-%20FORMATO%20AMERICANO%202017.pdf link to open resource.