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I'll probably butcher this fact, but 20/20 vision does not mean you have perfect vision. It means you have average / normal vision.
I've always had 20/20 (or perhaps better) vision. But now that I'm on the downhill side of ancient, I'm noticing that my vision is blurry. Especially while watching TV, reading, etc.
Yet, at both my primary care provider and at the optometrist, I'm able to accurately see all the letters on the vision charts and based on that I have 20/20 vision.
The optometrist (or maybe it was an assistant) explained that it's pretty common and that 20/20 is just average vision. It doesn't mean your vision isn't blurry and it doesn't mean you won't benefit from glasses.
The more you know!
Recently had lens replacement surgery (AMA?) which gave me 20/15 far sight vision. Seeing things up close is difficult (need reading glasses) but making out details from far away objects is unreal. It's like having HD vision.
Anywho, 20/20 simply means that you can make out details at 20 feet that the average person can make out at 20 feet. In my case, I can make out details at 20 feet that most people can only make out at 15 feet.
If you have 20/40 vision, it means that what most people can make out at 40 ft, you can only make it out of it were 20 feet away.
Now you know how that works.
What was the recovery from that surgery like? Any pain / discomfort / concerns?
I am considering getting lens replacement for my dog if I can come up with the money, but financial concerns aside, my other biggest concern is how stressful / painful / risky that kind of procedure might be for her.
Well, not being a dog, I can't really say for certain, but I'm sure your puppy will be fine. For me, there was little to no pain at all, even during recovery. Only mild discomfort, and I mean very mild. It's outpatient surgery and the actual procedure only takes a few minutes (for one eye). It was really no big deal at all