Task: Answer Verification
Input (English): Question: Does severe astigmatic blur interfere with spectacle lens compensation?
Answer: Severe astigmatic blur does not interfere with spectacle lens compensation. From this it can be inferred that the average amount of blur is not an important error signal for spectacle lens compensation and therefore probably not for emmetropization either. These results strengthen the case that the sign of defocus is used to direct eye growth.
Output (English): no