Function of erythropoietin in the preventing and treating of retinal injury

The invention discloses a method to prevent and treat retina injury of mammal, which comprises the following steps: giving effective dispense erythrocyte-stimulating factor (EPO) into vitreous chamber of injured eye; finishing the method. The EPO possesses the function of protecting retina vessel and neuron, which does not cause imperfect effect for other organ or tissue with local give medicine.