Progressive retinal atrophy (PRA-b)
This progressive retinal atrophy destroys the retina's light-sensing cells from around seven weeks old, leading to significantly compromised vision by about two years old. It originated in the Bengal breed, and UC Davis's genetics laboratory explicitly lists Savannah among the breeds it recommends testing, reflecting Savannah's part-Bengal ancestry.
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PRA-b DNA test result for both parents (UC Davis VGL or an equivalent laboratory)

