I never considered how cost effective ASEDs were. One blood draw gave me an entire year supply of ASEDs. There was a processing cost that was billed to insurance so I didn't pay much out of pocket. I was more focused on how gross the ASEDs seemed.

You are right , the Refresh celluvisc eye drops I now use for NK are expensive.

@edie2716 ... my corneal defect healed slowly but it finally closed after about 6 months. The ASEDs helped. I was diligent about the ASEDs because I didn't want to waste them. My ophthalmologist made sure that I understood how serious it was. I didn't like thinking about the corneal meltdown scenario.
https://pmc.ncbi.nlm.nih.gov/articles/PMC3420049/