Comparison between OCT and Fundus photography on cup-to-disc ratio and Arteriolar-to-Venular ratio measurements

Different clinical equipment may use different methods to assess cup-to-disc ratio (CDR) and arteriolar-to-venular diameter ratio (AVR) that may result in different readings. This study was conducted to compare the CDR and AVR measurements between optical coherence tomography (OCT) and fundus photog...

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Main Authors: Othman, Shah Farez, Ho, Kang Guan
Format: Conference or Workshop Item
Language:English
Published: IIUM 2021
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spelling my.iium.irep.1006992022-10-19T01:54:25Z http://irep.iium.edu.my/100699/ Comparison between OCT and Fundus photography on cup-to-disc ratio and Arteriolar-to-Venular ratio measurements Othman, Shah Farez Ho, Kang Guan RE Ophthalmology Different clinical equipment may use different methods to assess cup-to-disc ratio (CDR) and arteriolar-to-venular diameter ratio (AVR) that may result in different readings. This study was conducted to compare the CDR and AVR measurements between optical coherence tomography (OCT) and fundus photography (FP). Thirty-four (34) subjects were recruited into this clinical cross-sectional study. The mean aged of subjects was 22.90 ± 1.33 years, ranging from 21 to 27 years. Whereas the mean spherical equivalent refraction was -3.04 ± 2.42 D, ranging from +0.25 to -9.25 D. For the OCT, a 3D Optic Disc Scan protocol was used to measure CDR and AVR. Whereas a planimetry technique was used to obtain CDR and AVR measurements from the FP image output. The mean CDR and AVR obtained from OCT were 0.51 ± 0.08 and 0.74 ± 0.06, respectively. Whereas, the mean CDR and AVR obtained from FP were 0.41± 0.05 and 0.64 ± 0.05, respectively. There were statistical significant differences in the mean CDR and AVR between OCT [t(33) = 7.21, p<0.01] and FP [t(33) = 11.25, p<0.01] measurements. The CDR and AVR from OCT measurement were higher compared to the FP. In conclusion, during a routine clinical measurement for CDR and AVR, the various clinical equipment used must be taken into consideration before making a clinical diagnosis. IIUM 2021-11-24 Conference or Workshop Item PeerReviewed application/pdf en http://irep.iium.edu.my/100699/1/100699_Comparison%20between%20OCT.pdf Othman, Shah Farez and Ho, Kang Guan (2021) Comparison between OCT and Fundus photography on cup-to-disc ratio and Arteriolar-to-Venular ratio measurements. In: IIUM Research Day 2021: An International Online Event for Life Sciences, 24 Nov 2021, IIUM, Kuantan Campus. https://journals.iium.edu.my/ktn/index.php/ijohs 10.31436/ijohs.v3iSupplement 1
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
topic RE Ophthalmology
spellingShingle RE Ophthalmology
Othman, Shah Farez
Ho, Kang Guan
Comparison between OCT and Fundus photography on cup-to-disc ratio and Arteriolar-to-Venular ratio measurements
description Different clinical equipment may use different methods to assess cup-to-disc ratio (CDR) and arteriolar-to-venular diameter ratio (AVR) that may result in different readings. This study was conducted to compare the CDR and AVR measurements between optical coherence tomography (OCT) and fundus photography (FP). Thirty-four (34) subjects were recruited into this clinical cross-sectional study. The mean aged of subjects was 22.90 ± 1.33 years, ranging from 21 to 27 years. Whereas the mean spherical equivalent refraction was -3.04 ± 2.42 D, ranging from +0.25 to -9.25 D. For the OCT, a 3D Optic Disc Scan protocol was used to measure CDR and AVR. Whereas a planimetry technique was used to obtain CDR and AVR measurements from the FP image output. The mean CDR and AVR obtained from OCT were 0.51 ± 0.08 and 0.74 ± 0.06, respectively. Whereas, the mean CDR and AVR obtained from FP were 0.41± 0.05 and 0.64 ± 0.05, respectively. There were statistical significant differences in the mean CDR and AVR between OCT [t(33) = 7.21, p<0.01] and FP [t(33) = 11.25, p<0.01] measurements. The CDR and AVR from OCT measurement were higher compared to the FP. In conclusion, during a routine clinical measurement for CDR and AVR, the various clinical equipment used must be taken into consideration before making a clinical diagnosis.
format Conference or Workshop Item
author Othman, Shah Farez
Ho, Kang Guan
author_facet Othman, Shah Farez
Ho, Kang Guan
author_sort Othman, Shah Farez
title Comparison between OCT and Fundus photography on cup-to-disc ratio and Arteriolar-to-Venular ratio measurements
title_short Comparison between OCT and Fundus photography on cup-to-disc ratio and Arteriolar-to-Venular ratio measurements
title_full Comparison between OCT and Fundus photography on cup-to-disc ratio and Arteriolar-to-Venular ratio measurements
title_fullStr Comparison between OCT and Fundus photography on cup-to-disc ratio and Arteriolar-to-Venular ratio measurements
title_full_unstemmed Comparison between OCT and Fundus photography on cup-to-disc ratio and Arteriolar-to-Venular ratio measurements
title_sort comparison between oct and fundus photography on cup-to-disc ratio and arteriolar-to-venular ratio measurements
publisher IIUM
publishDate 2021
url http://irep.iium.edu.my/100699/1/100699_Comparison%20between%20OCT.pdf
http://irep.iium.edu.my/100699/
https://journals.iium.edu.my/ktn/index.php/ijohs
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score 13.211869