whew, I guess
Yesterday I called my own doctor to discuss the continuing problem. She said the symptoms are consistent with a torn retina, and sent me to a retinal specialist, who I saw this morning. He performed a thorough exam, including taking pictures of my retinas with some high-tech gizmo where they tell you not to move your eyes for several minutes (easier said than done).
He found no tears, no bleeding, and no signs of fluid accumulating behind the retina (which would happen if there were a tear that he couldn't see for some reason). He believes that the vitreous fluid in that eye has detatched from the retina, which happens to everyone eventually but usually a lot later. While the retina detatching from whatever is behind it is very bad, the vitreous detatching from the retina is nothing special.
Ok, I said, but what about my impeded vision? He thinks the cloudiness is actually another floater (obviously a less-dense one), and that eventually floaters tend to settle to the bottom of the eye and/or your brain gets used to them and you stop noticing them. Either way, all I can do is wait. I see him again in six weeks. Meanwhile, he showed me how to test my peripheral vision; I'm to do that daily and call immediately if there's a change.
So the good news is that there's no obvious damage, but in a way, the bad news is that there's no obvious damage. If there were a small tear, that would give them something to fix. But on the other hand, I'm just as glad not to be facing eye surgery this week, as that always has the potential to end badly.
While annoying, the floaters don't affect my distance vision in any noticable way. However, they affect my close vision quite a bit. Reading is a challenge, particularly against white backgrounds (paper or online). Larger fonts help, as do reverse video and lowering the contrast. (A yellow background is better than a white one, for instance.) Alas, many web sites (including the company wiki, but maybe I can get that fixed) and software packages impose black text on white backgrounds with nothing you can do about it. I've already got monitor brightness cranked way down; I'm going to need to figure out what else I can do.
If the problem doesn't go away and it's deemed serious enough, there is something the specialist can do for me -- but it's risky. The vitreous fluid doesn't serve a function other than to be there (keeping the various bits of your eye away from each other, I gather). There is a surgical procedure where they can remove the gunked-up fluid and replace it with something artificial. There is, however, a risk that it can affect vision in the wrong direction. I don't know the specifics; it's early to be thinking about that. (It can also cause glaucoma, but I already have glaucoma so I don't know if I have to care.)
The doctor I saw today seemed to be very ept and personable. He answered the questions I thought to ask at the time, and used teacher's aids to explain what was going on (a model of the eye). He was recording a running commentary as he examined me, so he could send it to my own doctor, which meant I got to hear everything he thought important during the exam. (When the recorder was off he then translated med-speak for me without my having to ask.) So far, kudos to this doctor.

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(My father had a retinal tear 20 years ago? I knew he'd had a serious problem, but I thought I remembered it being glaucoma-related. Ok, one more similarity between us -- not surprising, as he and I have very similar optical conditions.)