With the vision loss of cialis, does it come back?

I lost 40% of my vision in mid-December 2011. I'm a healthy 56 year old male with no history of heart disease, cancer, diabetes, etc. After taking a 10mg dose of Cialis, I awoke the next morning with vision loss in my left eye. After one month, I have regained about half of the lost vision, but my neuro ophthamologist says not to expect all of the lost vision to return. If you have a 'crowded disk' in the eye, the chances of you losing your vision are increased with taking any of the ED drugs. PLEASE CONSULT WITH YOUR DOCTOR. If in doubt and you notice any vision abnormalities, stop taking the drug and see a doctor!