After a stroke, the eyes may no longer have any feeling, interrupting the blink feedback loop.
After a stroke, it may be difficult to blink or close the eyes, when awake or asleep, leading to evaporative dry eye.
References
Prevalence and risk factors of dry eye disease in a British female cohort
Vehof J, Kozareva D, Hysi PG, Hammond CJ.
British Journal of Ophthalmology
2014 Dec;98(12):1712-7. doi: 10.1136/bjophthalmol-2014-305201. Epub 2014 Sep 3.
View the full report
What causes Dry Eye Syndrome?
Dahl AA.
MedicineNet.com
View the full report