Yes. I learned that I didn't actually lack enough tears, rather my tear production is low quality (missing the proper lubricating oils - Meibomian Gland Disease). This may be caused by other medications I take (most likely culprits are Alpha blockers), or simply genetic or old-age deficiency.
Prescription cyclosporine drops (Restasis) has helped about 50%, plus frequent lubricating drops (I find the best OTC drops for me are "Retaine MGD" ). My CDE specialist has suggested adding autologous serum drops to the regimen, but they are (1) very expensive and not yet Medicare approved, and (2) must be stored and transported frozen which makes them next to useless. I do not suffer from plugged meibomian glands, so gland probing would not be helpful.