Are you taking any medications? Some meds can affect memory.

Stress can also make some people a little flakey, that happens to me sometimes. What you are describing sounds like mild dissociation, it happens to lots of people and last I read they think there is genetic variation in the tendency. Have you ever driven a long distance and been daydreaming and realized you had covered some miles but dont exactly remember that in the same way? I'm not sure I explained that in quite right but it is the same phenomena.

I hope the retina repair gows well, I wouln't worry too much about the memory issue right now. Just keep an eye on it and see how you do over time.

judi