Positional independence of optic nerve head and retinal nerve fiber layer thickness measurements with spectral-domain optical coherence tomography.

ABSTRACT:

Purpose

To evaluate repeatability and positional independence of optic nerve head (ONH) and retinal nerve fiber layer (RNFL) thickness measurements in sitting and supine body positions using portable spectral-domain optical coherence tomography (iVue SD-OCT; Optovue Inc).

Design

Evaluation of diagnostic technology.

Methods

Sixty eyes of 30 subjects (10 healthy younger adults aged 20-27 years, 10 healthy older adults aged 50-66 years, and 10 glaucoma patients aged 38-82 years) were included prospectively. For each participant, all measurements were taken in a single session. After 5 minutes in the supine position, 5 scans were obtained from both eyes. Following a 5-minute sitting adaptation, 5 scans were then obtained in the sitting position. The same instrument was us

SUBMITTER: Mansouri K 

PROVIDER: S-EPMC3806882 | biostudies-literature | 2012 Oct

REPOSITORIES: biostudies-literature