Format

Send to

Choose Destination
See comment in PubMed Commons below
Optom Vis Sci. 2003 Sep;80(9):655-60.

Comparison of peripheral refractions determined by different instruments.

Author information

1
School of Optometry, Queensland University of Technology, Victoria Park Road, Kelvin Grove, Queensland 4059, Australia. d.atchison@qut.edu.au

Erratum in

  • Optom Vis Sci. 2003 Nov;80(11):778.

Abstract

PURPOSE:

To compare peripheral refractions obtained with a Hartmann-Shack sensor instrument and two commercial autorefractors.

METHODS:

Measurements were taken with a laboratory Hartmann-Shack instrument, the Canon Autoref R-1, and the Shin-Nippon SRW-5000 to 40 degrees in both directions along the horizontal meridian.

RESULTS:

The agreement between the Hartmann-Shack instrument and the Shin-Nippon autorefractor was good, with mean power differences varying from 0.3 D at the center of the visual field to 0.7 D at the edge of the visual field. The agreement between the Hartmann-Shack and Canon Autoref R-1 was not as good, but neither was the agreement between the Shin-Nippon and Canon instruments.

CONCLUSIONS:

The agreement between the instruments was similar to other comparisons made between different techniques. Combined with the high magnitude of peripheral refractions, this indicates that the Hartmann-Shack sensor technique can validly be extended from measuring central refractions to measuring peripheral refractions.

PMID:
14502047
[Indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Lippincott Williams & Wilkins - Ovid Insights
    Loading ...
    Support Center