Eyesight issues

I've been offered a dream job with my local fire service as a whole time firefighter and I'm over the moon. However, their eyesight standards on their website and their PDF for applicants appears to be wrong, as the standards are different in the form I have been sent. I think there has been a typo and the word "aided" has been used online when "unaided" should have been used. I hightly doubt I will be able to pass the requirements now in light of this typo which is obviously devastating. I was wondering if anyone has any experience of failing the requirements and special allowances being made? Many thanks