I imagine it depends on which cells are impacted. Glial cells not giving much option.
This reads like a horror story but that's the crudeness of life and death for us. Only thing to do is medical checkups from time to time and try to live a plenty life because you may not be there after the next corner.
We've investigated the feasibility of regular cancer screening for this, and the problems compound; turns out when we do regular imaging of the human body, we find out various odd morphologies are developing and dissolving all the time, and only a handful of them will ever become something the body's own immune system doesn't get on top of before it becomes an endemic problem. So "Why don't we just do regular pancreatic cancer screenings?" turns out to be harder than we want it to be, even if we could discount the cost factor.
I've already seen an optometrist and he thinks its just worsening blepharitis which I've had in both eyes for over 5 years.
Seriously, it's bananas how much silly stuff can mess with your eyes. You can have bad-quality tears! You have, for instance, an array of little glands that secrete an oil that needs to be in your tears for them to work right. And they malfunction all the time! (That was my diagnosis but wasn't ultimately what the real problem was, which was much dumber).
Go see a doctor but also don't freak out about it. You're not going to die next week.
I'm sorry for your losses.
