I am beginning to suspect that lighting may play a role in the recovery process... I was out of town for a couple days and left my lights on a very dim setting (and a timer) and when I got home my trout looked a bit better. I know absolutely that I am looking at the correct fish and at the correct eye... I since getting home on Tuesday evening, I have had a series of issues related to lighting, as a result of my own personal stupidity, which have culminated in a 48 hour period of darkness in the tank. I don't even believe it myself, and I fully recognize that my sample size is n=1, but my trout is looking even better yet following the period of darkness. I am thinking about limiting light to an hour or two, just long enough to acclimate and feed each day, in order to see the eye continues to recover as a result. Again, I don't even believe this is possible myself, as a scientist, but it is a correlation that I have observed, and I am willing to give it a shot. If you have the oppotuniay to try it yourself, please let me know how it goes for you.