uordom,
I think every application which has information about corrected eyesight is submitted to NATS medical for approval - as i guess this is something that a computer can't automatically check. As long as you fall within the guidelines on the NATS website, you'll be fine.
This happened to my application, because I submitted information about my corrected eyesight - and then when it had been checked over by NATS medical, I was then invited to the next stage. After your stage 3, you will also have a medical where they check parts of your eyesight - it's much like visiting the optician.
Hope this puts your mind at rest - and if you've got queries - just print out the page of the NATS website about eyesight, visit your optician, and ask if you fit in to the set guidelines.