Tortoise won't open his eyes and doesn't want to eat

by sue
(nottingham)

I have two horsefield tortoises, recently they don't seem to be eating anything and don't open their eyes. I have changed their lamp to a special reptile bulb. Previously we have had problems with the cat thinking their house is a litter tray. I always clean them out really quickly but wondered if this has had an affect on them. Should I take them to the vet?

Thanks

Sue