7. Where a worker suffers, as a result of an industrial accident or an occupational disease, bilateral injury resulting from anatomicophysiological deficits in symmetrical organs or from an anatomicophysiological deficit in an organ that is symmetrical to the one already impaired, the scale shall award an additional percentage, corresponding to the sum of the percentages of anatomicophysiological deficits fixed for the less severely impaired organ.
This principle does not apply to the percentages prescribed for disfigurement or suffering and loss of enjoyment of life.
Where a prior injury has occurred, the sequelae of the previous injury shall be evaluated according to the scale, but solely for purposes of calculating bilateral injuries.