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Ophthalmic Surg Lasers Imaging. 2011 Jul-Aug;42(4):308-13. doi: 10.3928/15428877-20110603-02.

Serial measurement of tear meniscus by FD-OCT after instillation of artificial tears in patients with dry eyes.

Author information

1
Doheny Eye Institute, University of Southern California, Los Angeles, California 90033, USA.

Abstract

BACKGROUND AND OBJECTIVE:

To use Fourier-domain optical coherence tomography (FD-OCT) to study the effect of artificial tears on the tear meniscus in patients with dry eyes.

PATIENTS AND METHODS:

The lower tear meniscus of 16 consecutive patients with dry eyes was imaged by an FD-OCT system (RTVue; Optovue, Inc., Fremont, CA). Baseline and five serial pairs of measurements were taken after the instillation of artificial tears (Optive; Allergan, Irvine, CA) at 1, 2, 5, 10, and 15 minutes. The lower meniscus height, depth, and area were measured with a computer caliper.

RESULTS:

Baseline meniscus measurements were 235.5 ± 150.0 μm, 138.1 ± 78.7 μm, and 0.020 ± 0.022 mm(2) for height, depth, and area, respectively. After instillation of artificial tears, all lower tear meniscus parameters remained significantly elevated for 5 minutes and returned to baseline by 10 minutes.

CONCLUSION:

FD-OCT is able to quantify a dramatic initial increase in tear meniscus, followed by a decay back to baseline values after approximately 5 minutes. FD-OCT may be useful in objectively quantifying the dynamic efficacy of dry eye treatments.

PMID:
21800803
DOI:
10.3928/15428877-20110603-02
[Indexed for MEDLINE]

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