Can my ocular prosthesis break?

Yes, which is why it has to be handled with particular care at all times.
Incorrect handling can lead to it being dropped and breaking.
You can find more detailed information in our kundeninformation [at] augenkuenstler.de (subject: Brochure%20for%20handling%20and%20care, body: Send%20me%20your%20brochure%20for%20handling%20and%20care%20please.%20My%20address%20is%3A) (brochure) on the handling and care of ocular prostheses.