Entropion (where the eyerim turns in and the lashes rub the eye — which can blindness if not surgically corrected) is usually inherited. If you want to be a responsible breeder, you have to ask yourself if you want to produce puppies that have physical defects that require them to have surgery in order to have a normal life. An ethical breeder should breed only healthy, sound dogs.
Novice folks or people who just think it might be fun to produce puppies often forget the responsibility they are undertaking. They are going to produce animals that will live 8-15 years. When people buy dogs, they should pick ethical, experienced breeders who will talk to them about whether or not they might want to consider breeding in the future.
Laws are being passed that restrict dog breeding because so many people are abusing the rights they have; those rights (to breed a dog) come with responsibilities — just like the right to have a drink of alcohol when you are of age. You still have to be responsible — for your actions, to other people – and in this case to the animal you own and the ones you might produce.
Do not breed without a mentor. The person you buy your puppy from should be able to mentor you — if not, you have bought a dog from an unqualified breeder. Good breeders offer lifetime support for you and your dog — they are experienced and helpful. You pay for that service IMO when you buy your dog — these breeders will also NOT sell a dog to someone who appears irresponsible but who has the $$$.
Just my opinion after breeding Turkish native dog breeds for 20+ years.