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Can Oct Pachymetry Identify Keratoconus Suspects?



Mohammadian M1 ; Hashemi H2 ; Jafarzadehpur E1 ; Jabbarvand M3 ; Mirzajani A1 ; Yekta AA4 ; Khabazkhoob M5
Authors
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Authors Affiliations
  1. 1. Department of Optometry, Iran University of Medical Sciences, Tehran, Iran
  2. 2. Noor Ophthalmology Research Center, Noor Eye Hospital, Tehran, Iran
  3. 3. Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Department of Optometry, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
  5. 5. Department of Epidemiology, Shahid Beheshti University of Medical Sciences, Tehran, Iran

Source: Iranian Journal of Ophthalmology Published:2015

Abstract

Purpose: Comparing the optical coherence tomography (OCT) pachymetry patterns in keratoconus suspect and normal people Methods: Thirty-two keratoconus suspects and 36 healthy eyes were selected within the age range of 20-30 yrs. Their pachymetry pattern was obtained through OCT Visante in the minimum thickness spot, upper and lower corneal difference (I-S), lower temporal, and upper nasal thickness (IT-SN), withdrawal or non-withdrawal of the minimum thickness area of cornea from 0-2 central zone using the output map. Results: In all measured parameters a significant difference was observed between the two groups (p<0.0001). The Keratoconus suspects had a thinner cornea and showed more changes in corneal thickness than the normal group. Conclusion: It seems that an OCT system of anterior segment can be utilized to assess patients prior to refractive surgery or Keratoconus screening, along with equipments such as Pentacam, and Orbscan. © 2014 by the Iranian Society of Ophthalmology.