Well, as predicted, I now have a very dense cataract in my left eye (still working on getting the pics but if/when I do, I'll post them for those interested).
Basically, the radiation has caused the fluid inside of my lens to become cloudy.
The upshot is that the vision in my left eye has grown progressively worse.
I didn't do a good job tracking exactly when this started or how it progressed, but here's what I can say: my left I was formerly my dominant one. Sometime this spring, I switched from taking photos using my left eye to using my right. Over the summer, the cataract became visual to the casual observer of my face. In late September when I went hiking, I realized I had to go much slower than I was used to in order to avoid tripping. In early October, I realized driving might be something I want to do with extra caution (i.e. turning my head all the way around when merging from right to left).
At this point I am practically blind in my left eye. I can't see you if you're on my left side. More importantly to day-to-day life, I have almost no depth perception. This has led to some exciting scenarios in which I a) walk into people next to me or door frames, b) attempt to light a candle by holding a match 1.5 cm away from the wick, or c) pour water onto the table rather than into a glass (the trick for this one is to bring the pitcher in contact with the water first, as a double-check).
This is the closest I could find on google image search to what my vision is currently like in my left eye:
But actually mine's far worse. There is no distance at which I can read out of my left eye. I can only tell how many fingers you are holding up if you are within 6 inches of my face. I can see light and dark, ish, but the light has a yellowish tinge.
The good news is that it's operable! I am pursuing cataract surgery here in Denmark ("grå stær" means cataract in Danish) -- [much] more on that soon. Additional good news is that though the surgery will require a specialist, my lens looks ok. The radiation has weakened its elasticity, which is part of what makes the procedure a bit higher risk, but it is tight, not "wrinkly," which is a good sign.
Sorry for the long hiatus, and more coming soon!
