That's quite common because just about everyone suffers with dry eyes as age increases.
It could just be an inherited tendency, on the might also be a nutrient deficiency. https://Oprh.ru/bitrix/redirect.php?goto=https://WWW.Zanichelli.it/login/zd-login.php?zanitTargetUrl=aHR0cHM6Ly9BYnJldmlldy5ydS9iaXRyaXgvcmVkaXJlY3QucGhwP2dvdG89aHR0cHM6Ly9Xd3cudGhlcmFsaWZlLmNvbS9jdXJlLW9jdWxhci1yb3NhY2VhLW15LXBlcnNvbmFsLXN1Y2Nlc3Mtc3Rvcnkv