دانلود کتاب بیماری خشکی چشم

The accepted TFOS DEWS II definition (2017) of dry eye includes symptoms as a required element of a diagnosis of dry eye disease and this was also the case with the 2007 definition. However, symptoms alone cannot make a diagnosis of dry eye disease. Standardization is important for a diagnosis and hence in the 2017 TFOS DEWS II diagnostic methodology report reviewed the many available questionnaires and recommended the use of the Ocular Surface Disease Index (OSDI) or the Dry Eye Questionnaire (DEQ-5). “The consensus view of the committee was to use the OSDI due to its strong establishment in the field or the DEQ-5 due to its short length and discriminative ability”. In addition, they noted the continuous nature of visual analogue scales makes them attractive for clinical trials compared to discrete Likert-based question rating.