Not a famous literature guru, but, if he is in darkness because of emotions, I would probably not associate 'eyes' to this darkness.
It is not like darkness where he can see the darkness. It is the lack of anything. Darkness is still darkness.
I am in liking with the second (B.) option, with perhaps a few changes:
B. His eyes could see nothing but a black abyss threatening to consume him.
B. He could see nothing but a black void* threatening to consume him.
*I changed abyss to void, as an abyss is technically something, isn't it? while a void is the lack therewith.
You may want to take better advice than that from a teenager, or one that is a more 'memberish' member of this community.
c.
NB: Even take out the 'black' of 'black abyss/void'.
NB: Even more! You don't need threatening either. Well, I do not know Jason, but perhaps 'consuming'? I am havign seconds thoughts of this myself. So heed me not.