Not a doctor and the following is NOT medical advice, just a theoritical discussion.
What is an issue is the "why?". A physician would be the place to start and of course it could be a dive related injury so don't forget to contact Divers Alert Network (DAN). Potential dive injuries are often time sensitive, the quicker you get help, the better. Dive injuries can surface in minutes to days after a dive. Call DAN if there is a remote possibility it is dive related.
As a SCUBA diver it is impotant to your medical care that you inform your physician that you SCUBA dive. Unfortunalty not all physicians are as quick on the uptake as others so it also important that you go on and tell them "I am telling you this not just to make conversation, but so you can consider this in my medical care and know that I am exposed to additional sources of infection, parasites and/or injuries that the averge person would not encounter."
I have taught blind divers. Being blind, partially blind etc does not mean you can't SCUBA dive. The Handicapped SCUBA Association International (HSA) is in 45 countries and celebrating over 31 years of certifing divers. HSA certifes individuals with disabilities including paraplegic, quadraplegic, amputee, blind, MS etc. As an HSA Instructor it has been my privilage to teach a blind student and to do a discover scuba at the Califrornia School for the Blind. In your case, since you still have full vision in one eye it is a non-issue. You just have to work a little harder to keep situational awarness of what is going on to your left. Don't forget to tell your dive buddy you can't see to your left and to discuss where they will be positioned (on your right or on your left).
