Deaf Effect

I'm assuming mom is an all white cat. If any of the kittens are all white like her (and especially if blue-eyed), yes they too can be deaf. Any of the eye colors (gold-eye, blue-eye, odd-eye) can be deaf.

I know you were concerned about the risks for your cat. Since she is less than a year old, the risks are even greater because she's still a kitten herself. I can't tell from her pics if she's full grown or not.

Are you feeding her kitten food? If not, it helps make sure she's getting the extra nutrition she needs, and also while she is nursing the litter, she should get kitten food as well.

Also, you could have your male cat neutered now, so that there are no more litters and also make sure to have Momma cat spayed as soon as the kittens are weaned! Please make the first time the last time.

We all have a tendency to think that our cats are just like us. They aren't. The instinct to breed is hormonally driven, the cat does not "want" babies, or feel fulfilled by them, or any of the other human emotions towards childbearing. She will, hopefully, take care of them, also instinct. I am sure she's scared, as she is still a kitten herself, but probably knows whats going on.

I would ring your vet and ask if they will still spay her - deaf cats should never be bred from, not just because they can pass it on, but because they tend to be poor mothers as they can't hear their babies crying. Are you able to cope if she can't rear them? If it is too late, please, please spay her when the babies are weaned.