I can sense elevated intraocular pressure

Glaucoma is known as the silent thief of sight because (in its common forms) there is no pain and no other symptoms until the damage has been done.

I don't have glaucoma, I have high IOP due to prolonged use of steroid drops. I know when the pressure is high, I can feel it. Firstly I get a pulsing, this means the pressure is up to about 25-30 then I get feelings of pressure and lastly if i blink fast I can see black striations in the shape of my iris.