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Baseline values of canine tear production determined by schirmer tear and phenol red thread tests.

Although research on canine tear production and dry eye has been reported in temperate countries in different breeds, there is no Malaysian data. On the average, at least two new cases of dry eye are diagnosed weekly at the University Veterinary Hospital (UVH) of the Faculty of Veterinary Medicine,...

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Main Authors: Aw, Melissa Hey Mun, Dhaliwal, Gurmeet Kaur, Abdullah, Nadzariah Cheng, Hassan, Latiffah, Chan, Sze Min
Format: Conference or Workshop Item
Language:English
Published: 2010
Online Access:http://psasir.upm.edu.my/id/eprint/31417/1/Proceedings-53.pdf
http://psasir.upm.edu.my/id/eprint/31417/
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spelling my.upm.eprints.314172014-11-06T09:45:37Z http://psasir.upm.edu.my/id/eprint/31417/ Baseline values of canine tear production determined by schirmer tear and phenol red thread tests. Aw, Melissa Hey Mun Dhaliwal, Gurmeet Kaur Abdullah, Nadzariah Cheng Hassan, Latiffah Chan, Sze Min Although research on canine tear production and dry eye has been reported in temperate countries in different breeds, there is no Malaysian data. On the average, at least two new cases of dry eye are diagnosed weekly at the University Veterinary Hospital (UVH) of the Faculty of Veterinary Medicine, Universiti Putra Malaysia. Currently in UVH the guidelines for the diagnosis of keratoconjunctivitis (KCS) and monitoring of response to treatment are based on recommendations for temperate countries. Thus the objectives of this study were to determine the Malaysian baseline values for canine tear levels using Schirmer tear test (STT) and phenol red thread test (PRTT), the relationship between and diurnal effect on STT and PRTT in dogs. The average baseline values for canine tear production in healthy local dogs in Malaysia with normal tear film breakup time (TBUT) were within the range of average baseline values reported in temperate countries. The average STT value for both eyes was approximately 22 mm/min and the PRTT was approximately 26 mm/15 s. There was poor relationship between STT and PRTT. This might be due to the presence of one or more confounding factors. The red colour change in PRTT was more intense when STT was performed first followed by PRTT and vice versa. The intensity of red colour change in PRTT was even more when performed in KCS dogs. This is because the intensity of the colour change in the phenol red thread is due to increasing alkalinity. Thus, KCS dogs had more alkaline tears than normal dogs. The lowest tear level was in the afternoon when diurnal study was conducted. Hence, KCS tests should be performed in the afternoon in order to obtain a more accurate measurement of tear level. Tear levels fluctuate when normal dogs were exposed in clinic with air-conditioned environment. Therefore, KCS tests should be performed immediately when dogs arrived at the clinic. 2010-01-05 Conference or Workshop Item NonPeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/31417/1/Proceedings-53.pdf Aw, Melissa Hey Mun and Dhaliwal, Gurmeet Kaur and Abdullah, Nadzariah Cheng and Hassan, Latiffah and Chan, Sze Min (2010) Baseline values of canine tear production determined by schirmer tear and phenol red thread tests. In: 5th Seminar on Veterinary Sciences, 5-8 Jan. 2010, Serdang, Selangor. .
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Although research on canine tear production and dry eye has been reported in temperate countries in different breeds, there is no Malaysian data. On the average, at least two new cases of dry eye are diagnosed weekly at the University Veterinary Hospital (UVH) of the Faculty of Veterinary Medicine, Universiti Putra Malaysia. Currently in UVH the guidelines for the diagnosis of keratoconjunctivitis (KCS) and monitoring of response to treatment are based on recommendations for temperate countries. Thus the objectives of this study were to determine the Malaysian baseline values for canine tear levels using Schirmer tear test (STT) and phenol red thread test (PRTT), the relationship between and diurnal effect on STT and PRTT in dogs. The average baseline values for canine tear production in healthy local dogs in Malaysia with normal tear film breakup time (TBUT) were within the range of average baseline values reported in temperate countries. The average STT value for both eyes was approximately 22 mm/min and the PRTT was approximately 26 mm/15 s. There was poor relationship between STT and PRTT. This might be due to the presence of one or more confounding factors. The red colour change in PRTT was more intense when STT was performed first followed by PRTT and vice versa. The intensity of red colour change in PRTT was even more when performed in KCS dogs. This is because the intensity of the colour change in the phenol red thread is due to increasing alkalinity. Thus, KCS dogs had more alkaline tears than normal dogs. The lowest tear level was in the afternoon when diurnal study was conducted. Hence, KCS tests should be performed in the afternoon in order to obtain a more accurate measurement of tear level. Tear levels fluctuate when normal dogs were exposed in clinic with air-conditioned environment. Therefore, KCS tests should be performed immediately when dogs arrived at the clinic.
format Conference or Workshop Item
author Aw, Melissa Hey Mun
Dhaliwal, Gurmeet Kaur
Abdullah, Nadzariah Cheng
Hassan, Latiffah
Chan, Sze Min
spellingShingle Aw, Melissa Hey Mun
Dhaliwal, Gurmeet Kaur
Abdullah, Nadzariah Cheng
Hassan, Latiffah
Chan, Sze Min
Baseline values of canine tear production determined by schirmer tear and phenol red thread tests.
author_facet Aw, Melissa Hey Mun
Dhaliwal, Gurmeet Kaur
Abdullah, Nadzariah Cheng
Hassan, Latiffah
Chan, Sze Min
author_sort Aw, Melissa Hey Mun
title Baseline values of canine tear production determined by schirmer tear and phenol red thread tests.
title_short Baseline values of canine tear production determined by schirmer tear and phenol red thread tests.
title_full Baseline values of canine tear production determined by schirmer tear and phenol red thread tests.
title_fullStr Baseline values of canine tear production determined by schirmer tear and phenol red thread tests.
title_full_unstemmed Baseline values of canine tear production determined by schirmer tear and phenol red thread tests.
title_sort baseline values of canine tear production determined by schirmer tear and phenol red thread tests.
publishDate 2010
url http://psasir.upm.edu.my/id/eprint/31417/1/Proceedings-53.pdf
http://psasir.upm.edu.my/id/eprint/31417/
_version_ 1643830320471998464
score 13.211869

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