Home > Terms > English, UK (UE) > Tear break up test (TBUT)
Tear break up test (TBUT)
A test that determines the quality of the tears on the eye. The doctor observes the tear film under the microscope while the patient avoids blinking until tiny dry spots develop. The longer the amount of time that passes before the tear film breaks up, the more stable the tear film. A good value is more than 10 seconds.
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- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Eyewear
- Category: Optometry; Contact lenses; Eye surgery
- Company:
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