An open label, randomized controlled study in a Norwegian population with meibomian gland dysfunction. Patients will be randomized to one of two groups: THERA°PEARL Eye Mask (Bausch & Lomb Inc., New York, USA) or Blephasteam® (Spectrum Thea Pharmaceuticals LTD, Macclesfield, UK). All patients will receive Hylo-comod (URSAPHARM Arzneimittel GmbH, Saarbrücken, Germany).