Peripheral vision is, I believe, more to do with the eye and it's spatial relationship to the skull.

I have an almost perplexing range of peripheral vision, to some. I can detect movement up to 110 degrees from a straight ahead stare and at about 140 from looking to my extreme. When looking to my extreme, I can ID most anything up to 135, and movement to 160.

Now, I do have a problem. I have developed astigmatisms in both eyes due to "out of round". This is due to, I believe, the fact that my eyeballs protrude to the extent that they are pressured against my pillow when sleeping on my side. Indeed, if I sleep past dawn and bury my head in the pillow to stay asleep, I waken with a sore eyeball.

It's not sommat that one would notice... it's quite common. I wonder how common.