Blind cats are amazing at mapping and navigating themselves. Some may require slow introductions to adjust to their new environment while others may not even show significant signs that they're even blind. While I love sprucing up my place and rearrange my furniture from time to time, I encourage you try to keep that to a minimum. Cats have a very keen sense of hearing but blind cats have an even better sense. Always call their name before you pet them and talk to them often! (That is if you already don't.) Another thing that I always do is to make sure they know their footing if they enjoy high places to ensure they don't injure themselves. For example, if I have a cat tree, I will tap on it to let the cat know that the cat tree is for them to climb on and enjoy. Physically place them on each step until you get to the top. Once they have a good feel, place them back on each step all the way down to the floor. They might call for help until they're comfortable but they will usually get the groove pretty quickly. 

Products I recommend: Crinkle toys, sensory mat, catnip, stairs