Central Corneal Thickness Measurement by Ultrasound versus Orbscan II

Central Corneal Thickness Measurement by Ultrasound versus Orbscan II

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Main Authors: Amir Faramarzi, Hossein Ziai
Format: Article
Language:English
Published: Knowledge E 2008-12-01
Series:Journal of Ophthalmic & Vision Research
Online Access:http://www.jovr.ir/index.php/jovr/article/view/31
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author Amir Faramarzi
Hossein Ziai
author_facet Amir Faramarzi
Hossein Ziai
author_sort Amir Faramarzi
collection DOAJ
description <!--[if gte mso 9]><xml> Normal 0 false false false MicrosoftInternetExplorer4 </xml><![endif]--><!--[if gte mso 9]><xml> </xml><![endif]--><!--[if !mso]><object classid="clsid:38481807-CA0E-42D2-BF39-B33AF135CC4D" id=ieooui></object> <style>
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 </style> <![endif]--> <p>PURPOSE: To compare Orbscan II and ultrasonic pachymetry for measurement of central corneal thickness (CCT) in eyes scheduled for keratorefractive surgery. METHODS: CCT was measured using Orbscan II (Bausch & Lomb, USA) and then by ultrasonic pachymetry (Tomey SP-3000, Tomey Ltd, Japan) in 100 eyes of 100 patients with no history of ocular surgery scheduled for excimer laser refractive surgery. RESULTS: Mean CCT was 544.7±35.5 (range 453-637) µm by ultrasonic pachymetry versus 546.9±41.6 (range 435-648) µm measured by Orbscan II applying an acoustic factor of 0.92 (P=0.14). The standard deviation of measurements was greater with Orbscan pachymetry but the difference was not statistically significant. CONCLUSION: CCT measurements by Orbscan II (applying an acoustic factor) and by ultrasonic pachymetry are not significantly different; however, when CCT readings by Orbscan II are in the lower range, it is advisable to recheck the measurements using ultrasonic pachymetry.</p> <!--[if gte mso 9]><xml> Normal 0 false false false MicrosoftInternetExplorer4 </xml><![endif]--><!--[if gte mso 9]><xml> </xml><![endif]--><!--[if !mso]><object classid="clsid:38481807-CA0E-42D2-BF39-B33AF135CC4D" id=ieooui></object> <style>
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spelling doaj.art-05d7d47332fd4bda96772788650191f82022-12-22T04:33:52ZengKnowledge EJournal of Ophthalmic & Vision Research2008-20102008-322X2008-12-01328386Central Corneal Thickness Measurement by Ultrasound versus Orbscan IIAmir FaramarziHossein Ziai<!--[if gte mso 9]><xml> Normal 0 false false false MicrosoftInternetExplorer4 </xml><![endif]--><!--[if gte mso 9]><xml> </xml><![endif]--><!--[if !mso]><object classid="clsid:38481807-CA0E-42D2-BF39-B33AF135CC4D" id=ieooui></object> <style>
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 </style> <![endif]--> <p>PURPOSE: To compare Orbscan II and ultrasonic pachymetry for measurement of central corneal thickness (CCT) in eyes scheduled for keratorefractive surgery. METHODS: CCT was measured using Orbscan II (Bausch & Lomb, USA) and then by ultrasonic pachymetry (Tomey SP-3000, Tomey Ltd, Japan) in 100 eyes of 100 patients with no history of ocular surgery scheduled for excimer laser refractive surgery. RESULTS: Mean CCT was 544.7±35.5 (range 453-637) µm by ultrasonic pachymetry versus 546.9±41.6 (range 435-648) µm measured by Orbscan II applying an acoustic factor of 0.92 (P=0.14). The standard deviation of measurements was greater with Orbscan pachymetry but the difference was not statistically significant. CONCLUSION: CCT measurements by Orbscan II (applying an acoustic factor) and by ultrasonic pachymetry are not significantly different; however, when CCT readings by Orbscan II are in the lower range, it is advisable to recheck the measurements using ultrasonic pachymetry.</p> <!--[if gte mso 9]><xml> Normal 0 false false false MicrosoftInternetExplorer4 </xml><![endif]--><!--[if gte mso 9]><xml> </xml><![endif]--><!--[if !mso]><object classid="clsid:38481807-CA0E-42D2-BF39-B33AF135CC4D" id=ieooui></object> <style>
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spellingShingle Amir Faramarzi
Hossein Ziai
Central Corneal Thickness Measurement by Ultrasound versus Orbscan II
Journal of Ophthalmic & Vision Research
title Central Corneal Thickness Measurement by Ultrasound versus Orbscan II
title_full Central Corneal Thickness Measurement by Ultrasound versus Orbscan II
title_fullStr Central Corneal Thickness Measurement by Ultrasound versus Orbscan II
title_full_unstemmed Central Corneal Thickness Measurement by Ultrasound versus Orbscan II
title_short Central Corneal Thickness Measurement by Ultrasound versus Orbscan II
title_sort central corneal thickness measurement by ultrasound versus orbscan ii
url http://www.jovr.ir/index.php/jovr/article/view/31
work_keys_str_mv AT amirfaramarzi centralcornealthicknessmeasurementbyultrasoundversusorbscanii
AT hosseinziai centralcornealthicknessmeasurementbyultrasoundversusorbscanii

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