Biomaterial Database

Reliability of a portable noninvasive tear break-up time test on Hong Kong-Chinese. 1993

P Cho

Department of Optometry and Radiography, Hong Kong Polytechnic, Hung Hom, Kowloon.

Seven normal asymptomatic Hong Kong-Chinese (HK-Chinese) were recruited and their noninvasive tear break-up time (NITBUT) was measured. Measurements were performed eight times over a period of 8 weeks to test the reliability of the NITBUT test over time. The distribution of NITBUT data was positively skewed. The mean (+/- SD) NITBUT was 16.0 (+/- 9.4) s and the mode was 17.5 s. Friedman two-way analysis of variance revealed no significant difference in the NITBUT taken on different days. For the clinical estimate of the NITBUT, we recommend taking five measures of NITBUT and average the three closest measures and use this as a representative value of tear stability for the subject.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D009907	Optometry	The professional practice of primary eye and vision care that includes the measurement of visual refractive power and the correction of visual defects with lenses or glasses.	Optometries
D002681	China	A country spanning from central Asia to the Pacific Ocean.	Inner Mongolia,Manchuria,People's Republic of China,Sinkiang,Mainland China
D005260	Female		Females
D006723	Hong Kong	The former British crown colony located off the southeast coast of China, comprised of Hong Kong Island, Kowloon Peninsula, and New Territories. The three sites were ceded to the British by the Chinese respectively in 1841, 1860, and 1898. Hong Kong reverted to China in July 1997. The name represents the Cantonese pronunciation of the Chinese xianggang, fragrant port, from xiang, perfume and gang, port or harbor, with reference to its currents sweetened by fresh water from a river west of it.	Kowloon,New Territories,Hongkong
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D013666	Tears	The fluid secreted by the lacrimal glands. This fluid moistens the CONJUNCTIVA and CORNEA.	Meibomian Lipids,Meibum,Lipid, Meibomian,Meibomian Lipid,Tear
D013997	Time Factors	Elements of limited time intervals, contributing to particular results or situations.	Time Series,Factor, Time,Time Factor
D015203	Reproducibility of Results	The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results.	Reliability and Validity,Reliability of Result,Reproducibility Of Result,Reproducibility of Finding,Validity of Result,Validity of Results,Face Validity,Reliability (Epidemiology),Reliability of Results,Reproducibility of Findings,Test-Retest Reliability,Validity (Epidemiology),Finding Reproducibilities,Finding Reproducibility,Of Result, Reproducibility,Of Results, Reproducibility,Reliabilities, Test-Retest,Reliability, Test-Retest,Result Reliabilities,Result Reliability,Result Validities,Result Validity,Result, Reproducibility Of,Results, Reproducibility Of,Test Retest Reliability,Validity and Reliability,Validity, Face

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