My feral cat's eyes

To whom may answer my concern,
     My feral cat . . .  well, not my cat, but sort of. She is about 2 or 3 years of age and is very much feral. She roams around during the day and at night, she sleeps with us. Suprisingly, she goes to the bathroom in a litter box. But, that is not my concern. Sometimes, when she is outside, ready for me to take her inside, her pupils are strangely thing. Maybe half a millimeter thick. Barely noticable. Once I take her inside, her pupils fill her eyes. Do you know what this means? Also, not a concern, but just a thought. When I am petting her and she is on her bed, her paws expand, and go back in. Do you know what that sign means? Thank you for your response!
                                    Gofrog

[Aleda M Cheng, D.V.M., C.V.A]

Did you mean that her pupils are strangely thick?

If possible could you please send a photo to us of her eyes, both indoors and out?  

As far as the paws expending and going back in- this is a completely normal behavior left over from kitten-hood when she was nursing from her mother.  It just means that she is very content.