Effect of topical 0.5% timolol maleate on tear production as measured by Schirmer tear test in clinically normal horses

2011 ◽  
Vol 21 (5) ◽  
pp. 929-931
Author(s):  
Masoud Selk Ghaffari ◽  
Amin Sabzevari ◽  
Ramin Hajikhani ◽  
Alexandra Trbolova
Keyword(s):  
Timolol Maleate ◽  
Clinically Normal ◽  
Tear Production ◽  
Schirmer Tear Test

Evaluation of tear production using the Schirmer tear test I in healthy cats; effect of age, life stage, sex, breed and neuter status

2019 ◽  
Vol 184 (26) ◽  
pp. 799-799 ◽  
Author(s):  
Seyed Mehdi Rajaei ◽  
Houman Faghihi ◽  
David Leonard Williams ◽  
Ghazal Aftab
Keyword(s):  
Life Stage ◽  
Age Groups ◽  
Clinically Normal ◽  
Tear Production ◽  
Schirmer Tear Test ◽  
Significant Difference ◽  
Study Population ◽  
Effect Of Age

BackgroundThe purpose of this study was to evaluate the values of Schirmer tear test (STT) and determine effects of age, life stage, sex, breed and neuter status on tear production in healthy cats.MethodsThree hundred and forty-three domestic shorthair (DSH) and Persian cats, 50 days through 18 years old, were examined in this study. STT I was used to measure tear production in both eyes of each cat.ResultsA mean STT 14.9±4.8 mm/min was calculated for the eyes of all cats. There was a significant difference between STT values in kittens (≤6 months old) and cats of other age groups (P<0.001). A substantial number of cats with clinically normal eyes had STT values less than 10 mm/min. No significant difference was found between males (14.7±5.0 mm/min) and females (15.1±4.5 mm/min) in STT values (P=0.46). Significant differences were found between entire (14.4±4.2 mm/min) and neutered (16.2±4.1 mm/min) cats (P=0.001), and between STT values of DSH (14.6±5.0 mm/min) and Persian (16.5±3.1 mm/min) cats in the study population (P=0.001).ConclusionsThis study documents the average STT values for a sizeable feline population demonstrating that, in contradistinction to the situation in dogs, a number of cats with clinically normal eyes have STT values below 10 mm/min.

Effects of two concentrations of topical tropicamide on the Schirmer tear test in clinically normal cats

2016 ◽  
Vol 18 (12) ◽  
pp. 965-969 ◽  
Author(s):  
Masoud Selk Ghaffari ◽  
Reza Javadzadeh ◽  
Seyed Mehdi Rajaei
Keyword(s):  
Distilled Water ◽  
Clinically Normal ◽  
Tear Production ◽  
Schirmer Tear Test ◽  
Production Measurement ◽  
The Mean ◽  
Ophthalmic Solutions

Objectives The aim of this study was to evaluate the effect of topical tropicamide at two concentrations (0.5% and 1.0%) on the Schirmer tear test (STT) results in clinically normal cats. Methods Twenty-four adult domestic shorthair cats were randomly assigned to three groups. In all three groups, ophthalmic solutions were instilled in a randomly selected eye and the opposite eye served as the control. In groups 1, 2 and 3 one drop of 0.5% tropicamide, 1.0% tropicamide and distilled water was used, respectively. Tear production in both eyes was tested 30 and 60 mins after instillation in all three groups. Results Baseline mean ± SEM STT values for the treated eyes in groups 1, 2 and 3 were 13.37 ± 2.91 mm/min, 10.87 ± 1.39 mm/min and 11.37 ± 1.65 mm/min, respectively. Thirty minutes after the drug instillation in the treated eye, mean ± SEM STT values in groups 1, 2 and 3 were 4.87 ± 3.05 mm/min, 2.00 ± 0.84 mm/min and 11.25 ± 1.81 mm/min, respectively. The mean ± SEM STT levels of the treated eye after 60 mins were 3.75 ± 1.87 mm/min, 0.5 ± 0.37 mm/min and 11.42 ± 1.78 mm/min in groups 1, 2 and 3, respectively. Conclusions and relevance Use of 0.5% topical tropicamide, instead of 1.0% tropicamide, as a mydriatic agent, can be recommended in cats. Tear production measurement should be performed prior to the administration of tropicamide, regardless of the concentration of this drug.

Effect of acepromazine or xylazine on tear production as measured by Schirmer tear test in normal cats

2010 ◽  
Vol 13 (1) ◽  
pp. 1-3 ◽  
Author(s):  
Masoud Selk Ghaffari ◽  
Abdolali Malmasi ◽  
Saied Bokaie
Keyword(s):  
Tear Production ◽  
Schirmer Tear Test

Reference values for intraocular pressure and Schirmer tear test in clinically normal Sanjabi sheep

2011 ◽  
Vol 97 (1-3) ◽  
pp. 101-103 ◽  
Author(s):  
Masoud Selk Ghaffari ◽  
Mohammad Shojaei ◽  
Amin Sabzevari ◽  
Nargess Khorami
Keyword(s):  
Intraocular Pressure ◽  
Reference Values ◽  
Clinically Normal ◽  
Schirmer Tear Test

scholarly journals Evaluation of tear production with modified Schirmer tear test-1 during the neonatal period in cats

2011 ◽  
Vol 31 (4) ◽  
pp. 350-354 ◽  
Author(s):  
L.F. Conceição ◽  
A.P. Ribeiro ◽  
M.L.M. Torres ◽  
M.L.G. Lourenço ◽  
J.L. Laus
Keyword(s):  
Reference Values ◽  
Neonatal Period ◽  
Positive Correlation ◽  
Tear Secretion ◽  
Tear Production ◽  
Schirmer Tear Test ◽  
Maturity Parameters ◽  
Time Point

The study aimed to evaluate tear production by means of modified Schirmer tear tes-1 (mSTT-1) in neonate cats. Likewise, correlation between mSTT-1 and STT-1 was assessed in vitro. Standard SST strips were cut in half and after eye lid opening, tear production of neonates (n=15) was daily measured in both eyes (mSTT-1), until the 7th day, and at day 14, 21, and 28. Animals were daily weighted until 28 days of age. Results were compared statistically (P<0.05). During the first 7 days, the overall mSTT-1 mean was 0.76 wetting/minute. Significant differences between right and left eyes were not observed at any time point (P=1.00). Tear secretion increased significantly, from the 14th to 28th day, in comparison with 7 first days (P<0.05). Positive correlation between maturity parameters and tear secretion was observed (P<0.0001). Distance between slopes of each strip changed significantly (P<0.0001). It was concluded that tear secretion in the neonatal period of cats is very below the reference values described for young and adults of the same species. It is not possible to extrapolate results obtained with mSTT-1 to standard STT-1.

Tear production in canine neonates - evaluation using a modified Schirmer tear test

2012 ◽  
Vol 16 (3) ◽  
pp. 175-179 ◽  
Author(s):  
Enry Garcia da Silva ◽  
Lynne S. Sandmeyer ◽  
Juliet R. Gionfriddo ◽  
Fabiano Montiani-Ferreira ◽  
Paula D. Galera
Keyword(s):  
Tear Production ◽  
Schirmer Tear Test
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