A:Recently I have been getting headache and my eyes come to see focus properbly.

B:When did you last time have your eyes checked?

A:Two years ago. At that time I had no problems.Now I can’t even make out something ten meters away.

B:Come over here. I will test your eyes. First cover your left eye like this, and when I point, please read the chart from the top, and go as far as you can,telling me which way the “E” points.

A:All right.

B:Good.Now the other eye.

A:Well, this one is worse.

B:Never mind, just read as far as you can.

A:I can only read the first three lines.