Last week I was hit in the forhead, and two days later I started to lose my vision in one eye (I was hit above that same eye -- the right one). At first it was as if there was a shadow, and then got progressively worse. I went to the ER, CAT scan was normal, and MRI showed that there was a inflamation of the Optic Nerve and a mild concussion. I lost complete vision on Thursday, and its sunday now... how long before my vision should return??