In several occasions, while reading, it has happened to me that when re-reading a sentence, I find out I read it wrong the first time; every time it is only one letter the one that I get wrong, but I always notice the mistake after reading once again.
It has just happened to me some minutes ago while taking a Japanese hiragana quiz; I read the "の" (in "みせのなまえ") as "い" instead, but the second time I saw the correct character; both characters look a bit alike. I don't remember other examples.
This problem doesn't seem to fit any symptoms of dyslexia (at least the ones listed here: http://www.dyslexia.com/library/information.htm#Reading), and I haven't identified other problems with my reading, writing or spelling.
Some search results (like this: https://www.quora.com/Why-do-I-read-words-wrong-sometimes-frequently) say it's simply reading too fast, but I was wondering if any of you knew something about it.
Are these mistakes common? Does the phenomenon have a name? What does this mean?