Examination::openVisualAcuity PHP Method

    public function openVisualAcuity()
    {
        $element = $this->getElement('expandVisualAcuity');
        //$this->scrollWindowToElement ( $element );
        //$this->getSession ()->wait ( 2000 );
        $element->click();
        $this->getSession()->wait(5000, 'window.$ && $.active == 0');
    }