If you've booked through Thomson then tell Thomson, they are very good at adding your information onto the system which will be pulled through to Jet2 if it ends up you are flying with them. Rest assured - you will not be offloaded for being visually impaired (unless you don't make the gate etc...).
Although - if you are capable of managing the journey yourself then I wouldn't bothering mentioning anything.
Last edited by ImPlaneCrazy; 29th July 2012 at 20:53.