Many people take Plaquenil for many years without any ill effects. The eye issues they are careful to warn about
are actually very rare, and are even reversible, so as long as you get the appropriate eye exam once a year the risk is very, very small. It is the appropriate first treatment for several auto-immune diseases such as Sjogren's. (Did the rheumy diagnose Sjogren's?)
Several Sjogren's members here have gotten the tear duct plugs, perhaps they will come along and comment - I personally have no experience with them. I will say that if you are also experiencing mouth issues plugs will do nothing for that, whereas the Plaquenil may help both issues.
Lynnwood, Lupus & Sjogren's Moderator, Dx: 2002DIAGNOSING LUPUS & HW's LUPUS 101
"Life is far too important to be taken seriously." - Oscar Wilde