We have a 1 year 3 month old Tibetan Mastiff. His eyes are droopy and it has been noticable since about 8 months of age with no signs of going away , now the Tibetan Mastiff is supposed to be 'tight eyed' so this is an issue. However would pet insurance cover surgical correction for this ? We wouldn't want to do anything until he is 2 or over because he is still growing and changing and the vet hasn't said anything to us as I think , she presumes all mastiff breeds are supposed to have droopy eyes. We have insurance and have since he was 4 months old but is this classed as pre existing as we noticed it ages ago but haven't said anything ? Or would there be a reason they would not cover surgical correction? We are in the UK and have highest level of morethan insurance.