public function setDefaultOptions()
{
$this->unit_id = $this->getSetting('unit_id');
if ($rows = $this->getSetting('default_rows')) {
$left_readings = array();
$right_readings = array();
for ($i = 0; $i < $rows; ++$i) {
$left_readings[] = new OphCiExamination_NearVisualAcuity_Reading();
$right_readings[] = new OphCiExamination_NearVisualAcuity_Reading();
}
$this->left_readings = $left_readings;
$this->right_readings = $right_readings;
}
}