Intra-observer and inter-observer repeatability of ocular surface interferometer in measuring lipid layer thickness.

ABSTRACT:

Background

Tear lipid morphology is important for normal tear function. Recently, there have been clinical studies using interferometry to assess lipid layer thickness (LLT). The aim of the study is to examine the repeatability of a commercially available interferometer.

Methods

Two observers measured LLT in twenty Asian subjects (20 eyes) using an interferometer (LipiView® ocular surface interferometer, TearScience Inc, Morrisville, NC). Dry eye symptoms, tear break up time (TBUT) and corneal fluorescein staining were also prospectively evaluated.

Results

Data for 20 participants are presented for either right or left eye (randomly selected). The mean LLT ± standard deviation of these participants was 53.53 ± 14.59 nm. When a single observer repeated the imaging on t

SUBMITTER: Zhao Y 

PROVIDER: S-EPMC4462010 | biostudies-literature | 2015 May

REPOSITORIES: biostudies-literature