Often play cell phones, to do the following points to be able to protect the eyes. First, to adjust the light of the phone to the ambient light around the brightness of about the same, neither in the sunlight is too harsh to play the phone nor in the light of a very dark place to play the phone. Second, try not to lie down to play cell phone, this posture is easy to lead to astigmatism, vision loss, etc.. Third, after playing cell phones for about 30 minutes, look away for 10 minutes, and at the same time, move the cervical spine. Fourth, cell phones on the posting of anti-radiation film. Fifth, try not to play with the phone when walking. Sixth, after playing cell phones for a long time, to wash your face in time to reduce the absorption of radiation. Seventh, often play cell phones, easy to appear dry eyes fatigue, etc., can be local drops with artificial tears, while hot compresses. Eighth, usually eat more vegetables and fruits rich in vitamin A.