A monthly allowance equivalent to the allowance payable pursuant to

Section shall be paid, in lieu of any other surviving children’s benefits, to the guardian of surviving unmarried children while under years of age and the surviving unmarried children over age and under age who are full-time students, and to the guardian of a surviving unmarried child over age who is disabled by a condition which disabled that child prior to attaining age and which has continued without interruption after age 18, until the disability ceases, of a judge who dies after retirement under this

chapter without a surviving spouse or in the event that the surviving spouse of a judge dies after his or her death while receiving an allowance payable pursuant to

Section 75077. The amount paid shall be divided equally among the children. “Children,” for the purposes of this section, shall be limited to dependent children and stepchildren of the judge at the time of his or her retirement. “Disabled” or “disability” means, with respect to qualification for an allowance to a surviving child, inability to engage in any substantial gainful occupation by reason of any physical or mental impairment which is determined by the board, on the basis of competent medical or psychiatric opinion, to be of permanent or extended duration. Election to come within the benefits of this

article as provided in

Section shall be deemed to include an election to enjoy the benefits of this section, and contributions shall be made by any retired judge so electing as fixed by

Section to be deducted from the judge’s retirement allowance during his or her lifetime as provided in

Section 75106.5. The benefit payable under this

section to a disabled child shall not exceed percent of the compensation payable, at the time payments of the allowance fall due, to the judge holding the office which the retired judge last held prior to discontinuance of service as a judge. The amendments made to this

section during the 1991–92 Regular Session shall be applicable to any retired judge who elects to be subject to the amended provisions of this

section on or before January 1, 1993. A retired judge so electing shall pay all the contributions he or she would have made pursuant to

Section had he or she been covered by this

article at the time of retirement.