public function getLetterIOPReadingAbbr(\Patient $patient)
{
if (($episode = $patient->getEpisodeForCurrentSubspecialty()) && ($iop = $this->getElementForLatestEventInEpisode($episode, 'models\\Element_OphCiExamination_IntraocularPressure'))) {
$readings = array();
if ($reading = $iop->getReading('right')) {
$readings[] = "r:{$reading}" . ($iop->isReadingAverage('right') ? ' (avg)' : '');
}
if ($reading = $iop->getReading('left')) {
$readings[] = "l:{$reading}" . ($iop->isReadingAverage('left') ? ' (avg)' : '');
}
return implode(', ', $readings);
} else {
return;
}
}