AOA 1 & 2
The 2 types of ataxia
with oculomotor apraxia
are autosomal recessive disorders (each parent carries the gene mutation), but they involve different genes.
>18 mutations of the aprataxin gene on chr. 9 can cause aoa 1. A geneticist may have determined the mutation in your grandchild. Her parents can call 352-273-9194, the national ataxia registry, for information & support. See the genedx website.