This! I am doing a similar thing with only Home Assistant, i.e. without Node RED. No need for „smart“ appliances and reverse engineering their protocols if all you want is to be notified when the washing cycle is over.
There are devices to measure IOP, most used but kind of inaccurate with a small „air burst“ on your eye. There seem to be more accurate measurement methods but they involve „touching“ the eye.
I have had myopia since age 18 and it constantly worsened. I got diagnosed with glaucoma in my 30s as a result of high IOP, but only because I started to have bad vision because my right optic nerve is already damaged. I started taking medication to reduce IOP then (a few years ago) and since then my myopia stopped worsening.
I have this image of my eyeball in my head, being basically a skin sack full of water enclosed in the skull in all dimensions but one. My theory is my eyeballs lengthened because of the high IOP. My ophthalmologist says this is impossible. Unfortunately I am not scientifically literate enough to check that and I am not sure who to talk to.
What I am trying to say is, if your myopia is constantly worsening get your IOP tested - just in case.