Most idiopathic: Most cases do not have a cause. Some cases are associated with CNS (brain problems such as genetic or idiopathic causes), some are genetic such as leber's disease and rarely can be due to maternal diabetes and drug use.
Answered 9/29/2016
5k views
A doctor has provided 1 answer
A doctor has provided 1 answer
2 doctors weighed in across 2 answers
6 doctors weighed in across 2 answers
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question