your Lord is not one-eyed

The Dajjal will claim to be Messiah and then claim to be Allah, Himself. He will perform miracles. He will traverse the earth in short periods of time. He will exert control over weather patterns, sending down rain upon those who believe in him. He will exert a similar influence over crops and livestock. He will only be able to do this because Allah, in all of His Power and Wisdom, will allow him to do so, not because the Dajjal has any power unto himself. He will serve as a massive trial for humanity. We must learn how to protect ourselves.

http://etori.tripod.com/dajjalsystem/protection.html