When the egg is fried with the yolk in the center and hasn't been flipped that's called a sunny side up egg. That's what this technique will give you — a sunny side up egg with a perfectly runny egg yolk. "Over easy" is when the egg has been flipped just briefly and the yolk is still runny. "Over medium" is when the egg has been flipped and the egg is barely runny. You could try combining this technique with a flip, but since the egg yolk is a little more fragile here I wouldn't recommend it.