Permanent Disability: Presumption of Total Disability
Labor Code Section 4662 Any of the following permanent disabilities shall be conclusively presumed to be total in character:
a Loss of both eyes or the sight thereof;
b Loss of both hands or the use thereof;
c An injury resulting in a practically total paralysis;
d An injury to the brain resulting in incurable mental incapacity or insanity.
In all other cases, permanent total disability shall be determined in accordance with the fact.