I figure this would be an interesting subject to discuss since this doesn't come up too often and I personally haven't seen anything in regards to this.

I found a study that was done specifically on ball python's vision. It's a PDF file. Check it out:
http://jeb.biologists.org/cgi/reprin...6vxowj421RqPzw

If you have any other information you'd like to add, please do so.

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