Congenital stromal corneal dystrophy is probably very rare; only a few affected families have been reported in the medical literature.
How many people are affected by congenital stromal corneal dystrophy ?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: How many people are affected by congenital stromal corneal dystrophy ? [/INST] \n Congenital stromal corneal dystrophy is probably very rare; only a few affected families have been reported in the medical literature.</s>