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Standardized experimental model of a gunshot open globe injury type A (without foreign body)

[Experimental medicine]
Alexey Anatolievich Kolbin; Sergey Viktorovich Churashov; Alexey Nikolaevich Kulikov; Veniamin Vasilievich Volkov; Roman Leonidovich Troyanovsky; Vladimir Fedorovich Danilichev; Rustam Rashidovich Kopylov; Boris Alexandrovich Kanevsky;

The paper presents the results of work on the creation of a standardized model of a gunshot open eye injury without an intraocular foreign body (open eye injury type A) based on a bullet wound to the eye of a cadaver rabbit caused by a projectile from an air weapon. In the course of 4 series of experiments, the parameters of shots were selected depending on the energy, aerodynamic characteristics and mass of the projectile. Data on the speeds of various types of simulated and standard projectiles, the nature of their behavior when meeting a target (plasticine, cadaver eyes), and the type of injuries were analyzed. According to the results of the work, the projectile was modernized, the parameters of the shot were determined that meet the requirements for creating a model of a type A firearm open eye injury. Shots were fired into the sclera zone 2–3 mm from the limb, from a distance of 30 cm, with a modernized projectile weighing 0.54–0.55 g, after two compressions of the air rifle pump, which provided the projectile speed from 41 to 46 m/s. A type A open eye injury Model (penetrating wound without an intraocular foreign body) was obtained, which is similar to a gunshot open eye injury in the nature and extent of damage to the anatomical structures of the eyeball.

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References:
1. Hoskin A. K., Watson S. L., Mackey D. A., Agrawal R., Keay L. Eye injury registries – A systematic review. Injury. 2019;50(11):1839-1846. https://doi.org/10.1016/j.injury.2019.07.019
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5. Cleary P. E., Ryan S. J. Experimental posterior penetrating eye injury in the rabbit. I. Method of production and natural history. British Journal of Ophthalmology. 1979;63(5):306-311. https://doi.org/10.1136/bjo.63.5.306
6. Kanevskiy B. A., Churashov S. V., Kulikov A. N., Grabovetsky S. I., Suetov A. A. Standartizirovannaya eksperimental’naya model’ ognestrel’noy otkrytoy travmy glaza. Sovremennyye tekhnologii v oftal’mologii. – Modern technologies in ophthalmology. 2018;(4):147-149. (In Russ.).

Keywords: pneumatic installation, standardized experimental model, gunshot open globe injury


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