UDC 617.7
DOI: 10.36871/vet.zoo.bio.202302001

Authors

Sergey A. Boyarinov,
Center of Veterinary Ophthalmology and Eye Microsurgery IVC MBA, Moscow, Russia
Sergey V. Saroyan,
Moscow State Academy of Veterinary Medicine and Biotechnology ― MVA named after K. I. Skryabin, Moscow, Russia

Abstract

The article presents the technique of paracentesis of the anterior chamber of the eye with simultaneous intra-chamber administration of 0,5% pilocarpine solution, to identify the dynamics of intraocular pressure reduction, as well as to determine the effectiveness of this procedure both immediately after its execution and in the long term; based on the analysis of the data obtained, to determine complications. The study included 37 animals (39 eyes): 24 dogs and 13 cats with glaucoma, which, according to the anamnesis, developed no more than 10 days. without any prior hypotensive treatment. All animals underwent paracentesis without the use of general anesthesia or sedation. The procedure was performed under 6x magnification using frontal illumination, with a 27G needle for 9 hours for the right eye and for 3 hours for the left eye. The puncture was carried out on the periphery of the cornea at a distance of 1 mm from the limb. The volume of aspirated intraocular fluid was no more than 0,5 drops. Then a 0,3 % solution of pilocarpine was injected into the anterior chamber through the opening of the paracentesis. The volume of the injected solution did not exceed 0,5 ml. After paracentesis and pilocarpine administration, dexamethasone solution was subconjunctively instilled in combination with gentamicin and novocaine. Then hypotensive therapy was prescribed from a combination of eye drops. The study shows that the method with simultaneous intra-chamber injection of XNUMX % pilocarpine solution is effective in dogs and cats without any pronounced side effects. These results allow us to suggest anterior chamber paracentesis as a procedure for emergency reduction of intraocular pressure, especially in acute attacks of glaucoma in dogs and cats.

Keywords

intraocular pressure, glaucoma, paracentesis, pilocarpine, dog, cat