OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 10 — Apr. 1, 2002
  • pp: 2065–2073

Accuracy Analysis in Laser Keratopography

Manuel Campos-García and Rufino Díaz-Uribe  »View Author Affiliations


Applied Optics, Vol. 41, Issue 10, pp. 2065-2073 (2002)
http://dx.doi.org/10.1364/AO.41.002065


View Full Text Article

Acrobat PDF (302 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We analyze the accuracy of a laser keratopographer in the evaluation of corneal topography for nonsmooth corneal surfaces and when some noise is introduced into measured data. Through some numerical simulations, cosinesoidal deformations with different amplitudes and spatial periods are introduced on theoretical surfaces. Gaussian noise is introduced on the simulated x and y position coordinates for the measured position of the reflected beam in order to simulate detection errors that are due to vibrations or electric and other noise on the position-sensing detector. We found that the topography of the surface could be obtained with reliable accuracy if the height-to-width ratio of the deformations of the surface is smaller than 0.02 and the error in the detection of position at the position-sensing detector is under 0.5 mm.

© 2002 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(120.3890) Instrumentation, measurement, and metrology : Medical optics instrumentation
(170.4460) Medical optics and biotechnology : Ophthalmic optics and devices

Citation
Manuel Campos-García and Rufino Díaz-Uribe, "Accuracy Analysis in Laser Keratopography," Appl. Opt. 41, 2065-2073 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-10-2065

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited