Hello, I Have Moderate KC, Stable For About 20 Years.

Hello, I have moderate KC, stable for about 20 years. I have been recently diagnosed with Graves -though not sure yet how severe, or if hypo- or hyper-thryroid. Appreciate any ideas of what I can expect? Realise there is hormonal treatment, but can expect that KC will further degenerate? Options for diet/lifestyle change advisable? Many thanks!