
Because their head conformation (deep set eyes and heavy brows) the breed is more prone to developing a condition called Entropion. In this condition they eyelids roll in and therefore the lashes and lids rub on the eye. It can vary from mild to severe. It can be treated by operating to make the lids less tight and sit away from the eye.
Also any eye infection would tend to be worse in this breed, causing the lids to swell and possibly cause a te,porary condition.
Her is one site with various eye diseases and their treatment explained in simple terms.
http://www.eyevet.org/