The tear (lacrimal) meniscus height in human eyes: a useful clinical measure or an unusable variable sign?

Doughty, Michael J.; Laiquzzaman, Mohammad; Oblak, Emil; Button, Norman F.

doi:10.1016/s1367-0484(01)00005-4

Cited by 64 publications

(48 citation statements)

References 48 publications

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“…Previous studies (Savini et al 2006;Shen et al 2009;Ibrahim et al 2010;Yuan et al 2010;Li et al 2012;Qiu et al 2012 (Zaman et al 1998;Doughty et al 2001Doughty et al , 2002. Although age-related variations in TMH have been reported, data obtained in the current study (0.20 AE 0.05 mm for baseline TMH of normal eyes) appeared to be reasonable.…”

Section: Discussionsupporting

confidence: 66%

Effect of non‐invasive tear stability assessment on tear meniscus height

Koh

Ikeda

Watanabe

et al. 2014

Acta Ophthalmologica

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ABSTRACT.Purpose: To investigate the effect of non-invasive tear stability assessment with forced eye opening on the lower tear meniscus. Methods: Twenty-three eyes of 23 patients with aqueous-deficient dry eye and 23 eyes of 23 normal subjects were enrolled. All subjects underwent imaging with a Keratograph 5M equipped with a modified tear film scanning function. Lower tear meniscus images were captured, and tear meniscus height (TMH) was measured with an integrated ruler before and after non-invasive Keratograph break-up time (NIKBUT) measurements in each subject. Subjects were instructed to keep their eyes open as long as possible during NIKBUT measurements, and the recording was discontinued at the next blink. Results:The TMH values of the normal and dry eye groups were 0.20 AE 0.05 mm and 0.14 AE 0.03 mm, respectively, at baseline. The TMH values of dry eyes were significantly smaller than those of normal eyes (p < 0.001). Significant increases in TMH values were observed in both normal (0.10 AE 0.12 mm) and dry eyes (0.04 AE 0.09 mm) with the NIKBUT measurement (p < 0.001, p = 0.039). A moderate negative correlation was observed between increased TMH and baseline TMH in dry eyes (r = À0.44, p = 0.03), whereas no correlation was observed in normal eyes (r = 0.04, p = 0.85). Conclusions: Forced eye opening required for the non-invasive tear stability assessment influences the TMH measurement possibly due to reflex tear secretion, even in patients with aqueous-deficient dry eye. TMH should be assessed before tests that require forced eye opening.

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Section: Discussionsupporting

confidence: 66%

Effect of non‐invasive tear stability assessment on tear meniscus height

Koh

Ikeda

Watanabe

et al. 2014

Acta Ophthalmologica

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“…14,15 For the statistical analyses described below, a cut-point of less than or equal to 0.3 mm was used for classifying an abnormal tear meniscus height. 16 …”

Section: Tear Meniscus Heightmentioning

confidence: 99%

The Lack of Association Between Signs and Symptoms in Patients With Dry Eye Disease

Nichols²,

Gl³

2004

Cornea

672

388

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“…4 Several clinical tests are used to diagnose or detect ocular dryness in both CL wearers and non-wearers of which one that has gained increasing attention is the tear meniscus height (TMH). [7][8][9][10][11][12] Tear meniscus height is used clinically as an indirect measure of tear volume and thus can also be used as a surrogate indicator of dry eye, when it is reduced below expected values. 1,13,14 Tear meniscus height values of the inferior tear strip when observed tangentially, falls between 0.16 and 0.35 mm with a mean of 0.21 mm.…”

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confidence: 99%

“…1,13,14 Tear meniscus height values of the inferior tear strip when observed tangentially, falls between 0.16 and 0.35 mm with a mean of 0.21 mm. 7 Values less than 0.1 mm have been reported as being indicative of tear deficiency. 7 Various methods have been used to measure the TMH, mostly by observation through a slitlamp.…”

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confidence: 99%

“…7 Various methods have been used to measure the TMH, mostly by observation through a slitlamp. [7][8][9]15,16 Since the tears are transparent, its borders are at times difficult to assess against the flesh tones of the lower lid, hence some studies have used dyes to highlight its visibility and increase visualization 14,[17][18][19] or by using specialized software to calculate the height using reflected horizontal patterns of the meniscus. 20 Recently, it has been demonstrated that the optical coherence tomographer (OCT) can successfully be used to measure both the height of the tear meniscus and its volume, with increased resolution over traditional observational methods.…”

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confidence: 99%

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