Board Thread:Naruto Discussions/@comment-4682609-20140507083715/@comment-1705651-20140507122002

I presume he can still use his copied techniques. Losing the eye is probably irrelevant since he already copied them once and losing an eye doesn't mind wipe people. He will just not be able to copy new techniques, but the ones he already has in his database are probably still with him. He will also be able to Chidori and Raikiri, but not properly, since the technique itself doesn't require a Sharingan, it just fixes the drawback. The only technique he seems to have lost for good is Kamui, but since Madara could still use Susanoo without his eyes, who really knows?