OEModule\OphCoCvi\models\Element_OphCoCvi_ClinicalInfo::getDisplayLightLevels PHP Method

    public function getDisplayLightLevels()
    {
        if ($this->sight_varies_by_light_levels === null) {
            return static::$NULL_BOOLEAN;
        } else {
            return $this->sight_varies_by_light_levels ? 'Yes' : 'No';
        }
    }