Method and system for improving accuracy in autorefraction measurements by including measurement distance between the photorecptors and the scattering location in an eye
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 24, 2009
Grant Date -
Mar 11, 2004
app pub date -
Aug 14, 2003
filing date -
Jun 27, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and associated system improve accuracy in objective refraction measurements by including the measured distance between the photoreceptors of a subject's eye and the scattering location of light during the objective refraction measurements. Chromatic aberrations in the objective measurements are also compensated. The distance between the photoreceptors and the scattering location may be determined by adjusting a distance between a rotating speckled light pattern and an eye until the speckled light pattern appears to be stationary, or by employing a Scheiner disk.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully