Just trying to help. Cataracts are "cloudiness" of the lens, and they definitely cut down on the amount of light that gets to the retina, to the point of opaqueness. My situation might be worse than yours as I also have post-vitreous detachment, in both eyes. The procedure only took thirty minutes to remove the lens and replace with an artificial lens, using only a Valium, and I was awake and could follow directions. The eye is both immobilized and anesthetized, so other than some weird bending of the light as the lens is replaced, there is no discomfort at all. Wore an eye patch (which is why they do them at separate times) for one day, then three types of drops 3x day for two weeks. I could drive and do anything the next day, but my wife drove me home as an added precaution. The only drawbacks (I had none) is possible infection, possible scar tissue, and possible movement of the lense. They have different types of lenses, but Medicare will only pay for the simplest one-focus lens. The multi-focus lens means no glasses are subsequently required, but they focus 60% distance, 40% near, meaning that if you are reading then the print will be clear, but there will be a slight "halo" caused by the 60% far lense. Same thing for viewing a movie in the theater, sharp lines with a small halo, caused by the 40% near-focus lens. I chose the ordinary lense for several reasons. I've worn glasses for so long, and in the army for 26 years, so I am used to them, and in fact, feel "naked" without them. The multi-focus lenses are more expensive, and I would have had to pay for them myself. And the operation is more complex, with much more exact measurements required and little room for error. If there is error then it can be corrected with glasses, but that obviates the rationale for the operation. With the simpler lense it is expected to have correction with glasses, and I have progressives meaning the top part is for far and the bottom part is for near, with a progression in the middle. Back to 20/20 and my depth perception, and night vision, are better. My decision point was when I dropped from 20/20 with glasses to 20/40 with glasses, and could sense the loss of light and increasing cloudiness. I thought if it is coming, better sooner than later. And we went to see a 3-D IMAX movie and I knew the one eye was not seeing as well as the other. Well, that's probably more than anyone wants to know!