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       XXIII Annual Congress of the Iranian Society of Ophthalmology        بـیــست و سومین کنــگــره سـالیـانه انـجـمـن چـشـم پـزشـکی ایـــران
مقاله Abstract


Title: Comparison of horizontal corneal diameter measurements using the Orbscan IIz and Pentacam HR systems
Author(s): Ramin Salouti, M.D.1, 2, Mohammad H. Nowroozzadeh, M.D.1, Mohammad Zamani, M.D.1, 2, Maryam Ghoreyshi, M.D.1, 2*, Amir R. Khodaman, M.D
Presentation Type: Oral
Subject: Cornea and Anterior Segment
Others:
Presenting Author:
Name: Ramin Salouti
Affiliation :(optional) Poostchi Ophthalmology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
E mail: saloutir@hotmail.com
Phone: 6278853
Mobile: 09171117976
Purpose:

To compare 2 automated devices for measuring the horizontal corneal diameter (white-to-white [WTW] distance).

Methods:

: In this prospective comparative case series, the WTW distance was measured by independent examiners using the Pentacam HR and the Orbscan IIz in 101 eyes of 101 healthy refractive surgery candidates. Statistical evaluation was performed using the paired t-test, Pearson’s correlation, and the Bland-Altman method for comparison of measurement techniques.

Results:

The mean WTW distance measurements were 11.76±0.38 mm with the Pentacam HR and 11.66±0.37 mm with the Orbscan IIz (P<0.001). The measurements were highly correlated (Pearson’s correlation coefficient = 0.948; P<0.001). The 95% limits of agreement for the Pentacam HR vs. the Orbscan IIz were -0.14 to 0.33 mm.

Conclusion:

The observed differences in WTW distance readings between the Pentacam HR and the Orbscan IIz are not clinically relevant, and the two devices could be used interchangeably in clinical practice

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  - بـیــست و سومین کنــگــره سـالیـانه انـجـمـن چـشـم پـزشـکی ایـــران