
Hi Stacey,
There is certainly a connection between blue eyes and deafness, most especially in white animals (including cats). But it is a congenital link - the animal will have been born deaf - and not a developing condition. In the UK several breeds with this problem are BAER hearing tested, which is the only way to know for sure if the animal is deaf in one, both or neither ear. If you contact a US Dalmatian Society, they should be able to help you. :)