Reptile & Amphibian Forums

I realise this is kind of a strange question, but it has nagged at me for many years...I think the biggest 'wow' I got from the first time I handled a yellow anaconda were those cool pupils; in strong light it almost appears that they have two pupils in the same eye. I had always guessed that they were designed to help the anaconda see above/below the water at the same time. I would like to hear anyone's opinion on this, thanks!
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Heather J. Martin
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1 Solomon island ground boa, female
1 Green anaconda, juvenile
1 Burmese python, 10', female
2 juvenile het for albino boa constrictors

I am not an expert on the rod and cone structure of snakes, but I have noticed this more odd eye shape among some animals that appear to be adapted for crepuscular activity year around. Heterodons have a very similar appearance.

I'd like to see this phenomenom as well, but can't quite make it out on the average pic's on here.

Thanks

Ian