1. Department of Anaesthesiology and Intensive Therapy, Faculty of Medicine, Medical University of Gdańsk, 80-214 Gdańsk, Poland
2. Department of Surgical Sciences, Dunedin School of Medicine, University of Otago, Dunedin 9016, New Zealand
3. Department of Ophthalmology, Faculty of Medicine, Medical University of Gdańsk, 80-214 Gdańsk, Poland