Hi
As an elderly cat he has several problems and the most likely possibilities are either diabetes or an overactive thyroid. Has the blindness ever been given a diagnosis? The symptoms are serious and cannot be left because they will shorten his life if ignored. Only a vet diagnosis and some blood tests can help work out exactly what is causing him to lose weight whilst over eating. Treatment does exist for these conditions.
Cathy Wickenden BVet Med MRCVS
Barton Lodge Veterinary Centre
1 Midland Road, Hemel Hempstead, Hertfordshire, HP2 5BH
Tel: 01442 216048 24 hours
[
www.bartonlodgevets.co.uk]