I have worked with many blind people, and I can tell you that he will have a serious time adjusting, mostly due to extreme disorientation. I had children who had been blind their whole lives (though, as mentioned above, many could see a slightly darker outline of shapes against a dark background and could tell if they, say, passed a window on a sunny day--something you would NOT have if your eye was ripped out), and even they had great difficulty manipulating spaces they were not used to. When they started at the new school, we would have to walk them around and around, until they had built up a sort of map in their heads. They also had trouble remembering to use their canes, because they were young teens and people had always led them by the arm (therefore reducing the need to arch their cane in front of them and limiting their independence--but it was easier and teens love easier).
Also, having a cane doesn't mean you can use it properly--it needs to be the right kind of cane. A deaf person has to arch their cane rapidly back and forth in a light, swift movement so that it can make contact with any barriers or people. For this reason, a tent pole would be much better than something wooden--the hollowness not only allows it to fold up, but also keeps it light and easy to swing. Anything too short or too heavy will hinder the ability to arch, and he will run into things with his shoulders because his cane is not covering the 180 degree space in front of him. So make sure he gets the RIGHT kind of cane.
Also, the more that his people help him, the longer it will take this dictator to adjust. As long as someone is leading him by the arm or telling him everything that happens, his senses will NOT improve. He will not remember to arch the cane when he walks or count his steps or memorize directions. So while having lots of people around may help him in the short term, it will also probably hinder his long term progression. Attacking every sound he hears will also be an impossibility: Though you can tell the direction sounds come from, you cannot accurately judge the distance, and since his eye was torn out he will not see outlines. He would most likely fall down trying to attack, as he would need to arch his cane to find his opponent and swing or shoot or whatever at the same time. So he will probably spend a lot of time in a heap on the floor if this is his personality, which I suppose could lead to suicide.
One last note: Braille does not need to be high technology. It is actually a simple system, just another form of writing English (as opposed to a deaf person's ASL, which is a different language--this is why blind children often read better than deaf children). For each letter or common letter combo (like "ea") there are a possibility of six dots, in two columns of three. Depending on the dot pattern, it is a certain letter. It is not too hard to learn, and you can label things in Braille by taking a piece of card stock and pressing the letters into it from the back (raising them on the front). So you don't need high level technology to do it, just someone who is patient enough to learn Braille and transcribe for you.