I can't read

A man was having his eyes tested at the optician's office.The optician asked him to point to a test card.

"Can you read that?"

"No." said the man.

The optician moved the chart closer:"Now can you read it?"

"No." said the man.

The optician moved the chart even closer:"Surly you can read it now?"

"No," said the man."I can't read."