March 2012
Volume 53, Issue 14
ARVO Annual Meeting Abstract  |   March 2012
Low-Coherence Reflectometry (OLCR) Versus Ultrasonic Techniques Of Pachymetry In Glaucomatous And Non-Glaucomatous Eyes
Author Affiliations & Notes
  • Tarek A. Shazly
    Reading Health Center, Reading, Massachusetts
  • Ernesto D. Golez
    Ophthalmology, Massachusetts Eye and Ear Infirmary, Reading, Massachusetts
  • Mark A. Latina
    Reading Health Center, Reading, Massachusetts
  • Footnotes
    Commercial Relationships  Tarek A. Shazly, None; Ernesto D. Golez, None; Mark A. Latina, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science March 2012, Vol.53, 100. doi:
  • Views
  • Share
  • Tools
    • Alerts
      This feature is available to authenticated users only.
      Sign In or Create an Account ×
    • Get Citation

      Tarek A. Shazly, Ernesto D. Golez, Mark A. Latina; Low-Coherence Reflectometry (OLCR) Versus Ultrasonic Techniques Of Pachymetry In Glaucomatous And Non-Glaucomatous Eyes. Invest. Ophthalmol. Vis. Sci. 2012;53(14):100.

      Download citation file:

      © ARVO (1962-2015); The Authors (2016-present)

  • Supplements

To assess the agreement of the optical low-coherence reflectometry (OLCR) pachymetry with ultrasound pachymetry in glaucomatous and non-glaucomatous eyes.


Central Corneal Thickness (CCT) was assessed using OLCR device LENSTAR LS900 and ultrasound pachymetry (DGH Pachette 3). The agreement between mean CCT measurements obtained from these 2 devices was assessed using a two-sample t-test. Agreement between the two devices was assessed with Bland-Altman plots and 95% limits of agreement.


One hundred ten eyes of 85 subjects were enrolled (64 with glaucoma and 46 normal eyes). Mean optical CCT measurements were 556+/-34 microns in the glaucoma group versus 560+/-33 microns with ultrasound pachymetry (p< 0.001). In the normal group, optical CCT was 560 +/- 37 microns compared to 570+/-37 microns (p< 0.001). For the two methods, the proportion of differences was found to be 100% within 40 microns of difference.


In normal and glaucomatous eyes, noncontact CCT measurements obtained from LENSTAR were statistically lower than those obtained from contact ultrasound pachymetry.  

Keywords: cornea: clinical science • optic disc 

This PDF is available to Subscribers Only

Sign in or purchase a subscription to access this content. ×

You must be signed into an individual account to use this feature.