Not really a comment on being able to take care of being able to take care of a dog while blind but please don't get a Chorkie. (I am actually kind of horrified that animal planet did a show on them putting designer dog breeds in a good light). Designer dog breeds are hugely problematic and are produced pretty much exclusively by backyard breeders and puppy mills. If you find one in a shelter great! But if you guy one there is no way to do it ethically and you are likely to end up with an unhealthy dog or one with behavioral issues. The guy who produced the original designer breed the Labradoodle says it's the biggest regret of his life (
$1) as it spawned so many imitations.
What did you like about Chorkie's specifically? Often there's a breed out there that fits all the same criteria but you can get it from an ethical breeder that does good genetic and health testing!