Effect of topical 0.5% betaxolol administration on intraocular pressure in clinically normal dogs

2009 ◽  
Vol 19 (3) ◽  
pp. 243-245
Author(s):  
Masoud Selk Ghaffari ◽  
Saied Bokaie ◽  
Masoud Hasan Barghy
Keyword(s):  
Intraocular Pressure ◽  
Clinically Normal

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 Tear production and intraocular pressure values in clinically normal eyes of whooper swans (Cygnus cygnus)

2018 ◽  
Vol 8 (3) ◽  
pp. 335 ◽  
Author(s):  
Liga Kovalcuka ◽  
Dmitrij Boiko ◽  
David L. Williams
Keyword(s):  
Intraocular Pressure ◽  
Clinically Normal ◽  
Tear Production

Comparison of two eyelid speculums and their effect on intraocular pressure in clinically normal cats

2019 ◽  
Vol 22 (8) ◽  
pp. 718-720
Author(s):  
Masoud Selk Ghaffari ◽  
Soroush Mohitmafi ◽  
Sara Hajizadeh
Keyword(s):  
Intraocular Pressure ◽  
Clinically Normal ◽  
Significant Difference ◽  
Different Types ◽  
Iop Measurement ◽  
Group B ◽  
Lateral Recumbency

Objectives The present study was undertaken to determine the possible effects of the placement two different types of eyelid speculum on intraocular pressure (IOP) measurement in clinically normal cats. Methods Thirty healthy cats were divided randomly into two groups of 15, group B (Barraquer wire speculum) and group W (Williams eye speculum). All cats were sedated with intramuscular medetomidine (Dorbene vet; 100 μg/kg) then placed in right lateral recumbency, and IOP was recorded in the left eye using a Tono-Pen Vet tonometer without and with an eyelid speculum in place in both groups. Results The without-speculum IOPs for cats in group B and group W were 13.8 ± 3.0 mmHg and 13.2 ± 3.6 mmHg, respectively, and did not differ significantly. A significant increase in IOP (19.8 ± 3.7 mmHg) was observed in group W in with-speculum measurements in comparison to the without-speculum values ( P <0.001).There was no significant difference between with- and without-speculum IOP values (13.8 ± 2.7 mmHg) in group B ( P = 1.0). Conclusions and relevance The Barraquer wire speculum has no effect on IOP compared with the Williams eye speculum in normal cats, and may be an appropriate choice in cats for intraocular surgeries that cannot tolerate acute increases in IOP.

Comparison of intraocular pressure measurements using rebound (TonoVet®) and applanation (TonoPen-XL®) tonometry in clinically normal alpacas (Vicugña pacos)

2016 ◽  
Vol 20 (2) ◽  
pp. 155-159 ◽  
Author(s):  
Jessica E. McDonald ◽  
Amy M. Knollinger ◽  
D. Dustin Dees ◽  
Nicole E. MacLaren
Keyword(s):  
Intraocular Pressure ◽  
Pressure Measurements ◽  
Clinically Normal ◽  
Vicugna Pacos

scholarly journals The effects of premedication with methadone on intraocular pressure in dogs and cats

2021 ◽  
Author(s):  
Esmeralda Delgado ◽  
André Delgado da Silva ◽  
Mariana Pinto Nunes
Keyword(s):  
Intraocular Pressure ◽  
Repeated Measures ◽  
Blink Reflex ◽  
Post Treatment ◽  
Respiratory Pattern ◽  
Ophthalmological Examination ◽  
Safe Alternative ◽  
Clinically Normal ◽  
Repeated Measures Analysis ◽  
Healthy Dogs

Abstract Background: The effects of premedication agents on the ocular physiology should be thoroughly understood by the ophthalmic surgeon so that intraocular pressure (IOP) values are kept stable. The purpose of this study was to determine the effects of methadone as a solo-agent of anaesthetic premedication on IOP in healthy dogs and cats.The study group included 60 clinically normal patients, 40 dogs and 20 cats. Ophthalmological examination, including baseline IOP (T0) of the subjects, was performed before methadone administration at a dosage of 0.2 mg kg-1. IOP variations were registered fifteen (T15) and thirty (T30) minutes later. IOP values were compared at each specific timepoint (T0, T15 and T30) using a repeated-measures analysis of variance (ANOVA) and differences were considered significant when P < 0.05. Results: The sedative effect of methadone did not affect the ocular globe or nictitating membrane position nor the menace response, dazzle reflex, corneal blink reflex or palpebral reflexes in any case. None of the animals studied presented with the secondary effects associated with opioids such as salivation, nausea, vomit, defecation, dysphoria or a clear modification of the respiratory pattern, The mean ± SD baseline (T0) and post-treatment (T15, T30) IOP values were, respectively, 16,8 ± 3,84 mmHg, 17,6 ± 3,01 mmHg and 16,1 ± 3,28 mmHg for dogs and 17,1 ± 3,31 mmHg, 16,6 ± 3,40 mmHg and 16,61 ± 2,81 for cats. There were no statistically significant differences between baseline and post-treatment values in dogs (p=0,107) or cats (p=0.077). Conclusions: The administration of methadone as a solo-agent of anaesthetic premedication at a dosage of 0.2 mg kg-1 did not cause significant changes on IOP values in dogs or cats. Methadone presented as a safe alternative for sedation, anaesthetic premedication or analgesia in ophthalmological patients since it did not interfere with IOP regulation.

Circadian rhythm of intraocular pressure in clinically normal donkeys (Equus asinus)

2020 ◽  
pp. 1-10
Author(s):  
Khaled M. Ali ◽  
Ahmed I. Abdelgalil ◽  
Elham A. Hassan ◽  
Faisal A. Torad
Keyword(s):  
Circadian Rhythm ◽  
Intraocular Pressure ◽  
Clinically Normal ◽  
Equus Asinus
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