Pip phone assessment

Hi guys..

I have my pip assessment on Monday over the phone, I was registered sight impaired in November and applied for pip in January. I attended the hospital last week where I have been told I am now over the threshold and am now severely sight impaired.

The hospital called today and went through the paperwork, they then emailed me a new copy of the certificate,.which I am going to upload. 

I have given that and a drs letter,.sick record from work, multiple statements as evidence, i know it's not based on the diagnosis but does anyone have experience of being turned down being severely sight impaired?

Not sure what else to I can say really, my vision is terrible, I'm borderline having to consider my job, as someone that's never applied before, it seems odd that when you have a surgeon/specialist register you, that you would have to jump through hoops to get any help. 

Thanks guys.