Upon retirement for disability, a member shall receive a disability retirement allowance which shall consist of a savings annuity and a service annuity computed in the manner specified in section 79-933 or, in lieu thereof, the formula annuity computed in the manner specified in section 79-934 without the reduction to the actuarial equivalent of the formula annuity deferred to the sixty-fifth birthday of the member.
Neb. Rev. Stat. §§ 79-952