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This study identifies key diagnostic markers for dry eye disease (DED). Objective measures like tear osmolarity and non-invasive breakup time are crucial for diagnosing DED effectively.

Keywords:
亚型亚型分类定义干眼病(DED)睑板腺功能障碍 (MGD)睑缘炎诊断鉴别诊断

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Area of Science:

  • Ophthalmology
  • Ocular Surface Disease

Background:

  • Dry eye disease (DED) is a prevalent condition affecting the ocular surface.
  • The Tear Film & Ocular Surface Society (TFOS) Dry Eye Workshop (DEWS III) provided updated DED guidelines in 2017.

Purpose of the Study:

  • To evaluate and define objective diagnostic criteria for dry eye disease.
  • To establish thresholds for key clinical signs associated with DED.

Main Methods:

  • Analysis of patient data including Ocular Surface Disease Index (OSDI-6) scores.
  • Measurement of non-invasive tear breakup time (NIBUT).
  • Assessment of tear osmolarity levels.

Main Results:

  • An OSDI-6 score of ≥4 was associated with DED.
  • A non-invasive breakup time (NIBUT) of <10 seconds indicated DED.
  • Tear osmolarity thresholds of ≥308 mOsm/L (right eye) and >328 mOsm/L (left eye) were identified as significant.

Conclusions:

  • Objective measures are essential for diagnosing dry eye disease.
  • Specific thresholds for NIBUT and tear osmolarity can aid in DED diagnosis.
  • These criteria align with current understanding and guidelines for managing DED.