One of my kids started school last year. He did well, learned to read etc., but we noticed that unlike his older sibling, he didn't seem to like letters, numbers and books much. We never seemed able to concentrate for more than a minute.<p>So in the summer break, we had his vision tested, and it was +6 and +4. Turns out that although you are half blind you can somehow manage to read and write anyways. In a matter of weeks after he got glasses, he taught himself to read in English, a language he doesn't even have in school but that he knows from YouTube and Netflix, and with letters different from the Cyrillic alphabet he knew.<p>If like us, you live in a place where kids' vision is not tested automatically by your physician, I can only encourage you to have your kids' vision tested.