A kitten’s eyes begin to open slightly around eight days of age. They won’t focus well, however, until the kitten is 2-3 weeks old. At the same time, his ears will open and he will become aware of soft sounds he could not hear before. The kitten’s legs now are becoming strong enough to hold his weight. Just a few short days after the kitten takes his first steps, he starts to run and climb, and explore his wonderful new world. Now, there’s no stopping this bundle of cuddle-soft fur. Source: The nest