I am 72 years old and have started to have problems with dry eyes. It’ s not all the time, but at some point each day, my eyes will suddenly get very dry. It’ s even hard to blink.

Q: I am 72 years old and have started to have problems with dry eyes. It’s not all the time, but at some point each day, my ...

This medication treats an issue that affects patients of all ages, some associated with Covid infection. Here's why ...