Unilateral acute idiopathic maculopathy

44 year old man One week ago the left eye was running non-stop and it burned and he had to pry the eye open. Then the vision started to decline three days ago. When he closes the right eye to look at something bright he cannot read. He had a chest infection started about 2-3 weeks ago. He saw a doctor on Monday 4 days ago. He was started on an antibiotic but has not started it yet. He did sore on the right side of his mouth with the infection and he did not have any rashes. He does not have exposure