Operation of rupture of a continuous posterior synechiae.

Introduction .

The procedure for examining the eyes in animals is as follows: beginning with the examination of the outer corner of the eye and its auxiliary elements. With the help of magnifying devices (for example, a headlamp magnifier), it is possible to examine in more detail the anatomical components of the eye. Ideal for ophthalmological examination is a slit lamp. Ophthalmological examination followed by evaluation begins with the anterior chamber of the eye. To measure intraocular pressure (tonometry), the most preferable is implantation tonometry (for example, using Tonovet). Obligatory for the detection of defects of the cornea, as well as in dogs and cats, is staining with fluorescein or bengal pink. Attention: use of topical anesthetics or mydriatic is prohibited! In the event of a spasm, undesirable side effects may occur. With local application - especially atropine can get into the mouth and lead to salivation and tachycardia. For the induction of mydriasis, which is necessary for further investigation, it is sufficient for the topical use of tropicamide. In single cases, with a significantly pigmented iris, binding of atropine may occur, which leads to insufficient expansion of the pupil. In addition, insufficient dilatation of the pupil after the application of atropine, can occur in animals with high activity of atropine esterase. Evaluation of the fundus is carried out with the help of a binocular ophthalmoscope and an enlarging lens (with a refractive capacity of 30-40 dioptres.The location of the optic nerve exit is to be sought from above nasally from the posterior pole of the eye.

6. Removal of foreign bodies from the conjunctival sac of the cornea. First, immobilization of the eyelids and superficial anesthesia are performed. Then the eyelid is turned out and the foreign body is removed with the help of eye pincers or with the tip of the injection needle. After that, use an antiseptic. In the presence of wounds associated with the introduction of foreign bodies, the seams are applied from thin silk. With hematomas, the blood is sucked off with a syringe or removed through a cut. 7. Orbitotomy. It is performed to remove the newly formed, located at the entrance to the periorbital and having a benign character (fibroma, lipoma). After infiltration anesthesia, a linear incision is made parallel to the edge of the eyelids along the upper or lower contour of the bone orbit. Dissect the orbital fascia and bluntly separate the neoplasm. Stop bleeding, the cavity is powdered with antibiotics and impose blind stitches.

Surgery in the eye area

1 Moxibustion of the third century. Performed with follicular conjunctivitis in dogs - The operation is performed in the supine position on the side with good head fixation. After preliminary anesthesia (5% solution of novocain in the form of instillation), the third eyelid is seized with tweezers, they are disturbed and they are turned out. Inflamed and enlarged follicles are extinguished with a stick of silver nitrate for 3-5 seconds and immediately irrigated with 0.8% sodium chloride solution from the syringe, otherwise the residual quantity of silver nitrate not connected with the tissue can get onto the cornea and cause the formation of a chalk spot that will violate vision. After cauterization, lacrimation is noted, photophobia and the inflammatory process becomes aggravated. After 3-4 days, the inflammation subsides. If necessary, cauterization is repeated after 8-10 days. In the interval between cauterization, an ophthalmic ointment with an antibiotic 2-3 times a day is injected into the conjunctival sac.

3. Correction of the fallen eyeball.

Perform in the first hours and even if after the fall 2 days have passed, provided that there are no dead tissues. The dropping eye swells quickly, so do not try to fix it in the unchanged eye gap. After the preparation of the operating field, infiltration anesthesia is done, using 15-20 ml of a 0.5% solution of novocaine with antibiotics. After the onset of anesthesia on the outer corner of the eye, the eye gap is cut, and then the eyeball is refilled, after having been treated with a warm solution of furacilin. On the wound, knotty stitches are applied, which are removed after 8-10 days. During this period, apply any eye antiseptic ointment.

4. Operations with eyelid twisting.

Often performed in dogs, as curl is promoted by a thinner skin. The purpose of the operation is to remove the skin flap of the eyelid. With a limited twist, remove the round, oval or semi-oval, and when turning at the outer corner of the eyelid, a swept area of the skin. Initially, anesthesia with novocaine solution 3-5 ml 0.5.1% concentration, which is injected under the skin. The size of the removed flap is determined by the size of the skin fold, which is grasped with forceps, while the vortex disappears. In semi-oval or arrow-shaped incision, the line of dissection of the skin should run parallel to the edge of the eyelid, otherwise it may deform. On the edges of the wound, knotty stitches are applied, which are removed after 7-8 days.

5. Operations with eyelid eversion.

Their essence boils down to tightening the edge of the twisted century (as a rule, the lower one), or by forming a skin fold to form a scar that would support the turning edge. The methods of Dieffenbach, Dieffenbach-Gref and Szymanowski are most suitable for this purpose. According to Dieffenbach, parallel to the edge of the century, retreating by 5-6 cm, cut the skin, exceeding the length of the turning eyelid by 0.5.0.7 cm in both directions, then in the middle part of it another two incisions 0.5-0.7 cm long are made to make an isosceles triangle was formed. The triangular flap of the skin is disfigured, sutures are placed on its sides, and then the seams on the cut, parallel to the edge of the eyelid. According to Dieffenbach-Gref, at the outer corner of the eye, a triangular patch of skin is excised, so that the base of the flap starts at the outer corner of the eye and is parallel to the edge of the lower eyelid. The larger the turnout, the greater the base of the flap. The triangular flap is prepared and removed, and from its base at the angle of the eye a skin incision is made so that a second triangle equal in size to the remote triangle is formed. The length of the cut must be equal to the base of the removed triangle. After this, the skin flap is discolored and stitched. According to Szymanowski at the outer corner of the eye, a skin flap is also excised, but an arrow-shaped flap. The inner side of it is a continuation of the line of the edge of the lower eyelid, and the outer one represents a vertical line. The size of the excised flap depends on the degree of eversion: the larger the turn the higher it rises its top. To establish the size of the excised skin flap, tweezers should tighten the skin fold near the outer eye until the inversion disappears. After removing the flap, knotty stitches are placed on the edges of the wound. If the cicatrices are not effective, these methods are used to form a scar on the conjunctiva, excising the fold.

6. Removal of foreign bodies from the conjunctival sac of the cornea. First, immobilization of the eyelids and superficial anesthesia are performed. Then the eyelid is turned out and the foreign body is removed with the help of eye pincers or with the tip of the injection needle. After that, use an antiseptic. In the presence of wounds associated with the introduction of foreign bodies, the seams are applied from thin silk. With hematomas, the blood is sucked off with a syringe or removed through a cut.

Orbitotomy.

It is performed to remove the newly formed, located at the entrance to the periorbital and having a benign character (fibroma, lipoma). After infiltration anesthesia, a linear incision is made parallel to the edge of the eyelids along the upper or lower contour of the bone orbit. Dissect the orbital fascia and bluntly separate the neoplasm. Stop bleeding, the cavity is powdered with antibiotics and impose blind stitches.

8. Extirpation of the lacrimal gland.

Conducted in the obstruction of tear ducts in the position lying on its side. After preliminary infiltration anesthesia, the gland's circumference with a 0.5-1% solution of novocaine is made at the anterior edge of the upper part of the ossicle from the middle to the outer corner of the eye. Then they penetrate the lower part of the supraorbital process of the frontal bone, grasp with the tweezers the anterior edge of the gland pull it up and dissolve the rest of the gland. Carefully stop bleeding, powder the cavity with antibiotics and impose blind stitches.

9. Peritomy and peridectomy.

Carried out with a superficial vascular keratitis with a significant proliferation of blood vessels. Dissect conjunctiva of the sclera in the form of a circular linear cut around the cornea (peritomy) or excised conjunctival ribbon on the sclera up to 1 cm wide (peredictomy). Anesthesia is carried out by infiltrating subconjunctival tissue around the eye with 0.5-1% novocaine solution and surface anesthesia. Bleeding does not stop. After the operation, antimicrobial ointments are used.

10. Removal of parasites from the chambers of the eye. Conducted with a setariosis eye. At the stage of the larva, the parasites penetrate into the chambers of the eye and develop to mature forms. Their presence causes inflammation of the iris, the back of the cornea, and clouding of the lens. After preliminary anesthesia (infiltration of the re-embolbar space and superficial anesthesia), a corneal puncture is made in the upper quadrant with a sharp spear knife or a pointed scalpel. Through the wound, eye anatomic tweezers are inserted into the eye's chambers, which extract the parasites. Then, at the conjunctival sac, atropine drops are applied and a protective bandage is applied.

Diseases of the conjunctiva

Pre corneal membranous occlusion of the cornea is described to date only in rabbits, dwarf rabbits and humans. This is a rare disease. With regard to age and sexual predisposition, it is believed that young males predisposed to the disease at the age of five to twelve months. To date, science has not proven that the disease can be congenital. Based on a comparative analysis of the damage to the pre-corneal membrane in humans, the secondary nature of the disease is assumed. To date, it is not known whether the excess membrane growth in rabbits, as in humans, is a consequence of a violation of the innervation regulation of the area of the conjunctival transition into the cornea. In the future, patients with these disorders will undergo anesthesiometry to test the tactile sensitivity of the cornea and the limbal part of the conjunctiva. Treatment consists in surgical removal of the membrane. Since the proliferation of the conjunctival part of the membrane is of limbal origin, to avoid relapses, the conjunctiva of the eyeball is removed at a distance of 4-5 behind the limbus. Due to the possible inflammatory genesis of the process, therapy with eye ointments containing an antibiotic and a corticosteroid is recommended in the future. Inflammatory diseases of conjunctiva are among the most common eye diseases in rabbits. The cause may be numerous infectious agents, such as Pasteurella multocida, Staphylococcus aureus, Pseudomonas spp., Chlamydien, Treponema cuniculi and Myxomatosis virus. Mixomatosis is a viral disease that is most common in wild rabbits, but in some cases domestic rabbits can also be affected. Transmission of the pathogen occurs through flies and mosquitoes.

Clinically, myxomatosis manifests itself in the form of subcutaneous edema, mainly in the area of mucosal-skin transitions of the natural openings of the body, such as eyelids, ears, the entire head region. Based on these symptoms, a preliminary diagnosis can be made. However, the final diagnosis can be made only by isolating the virus. Own experience shows that rabbits that are kept in the garden, very often suffer from keratoconjunctivitis caused by myxomatosis. Specific therapy does not exist. Sick animals are subject to euthanasia. However, it should be remembered that non-infectious agents are also capable of causing conjunctivitis. These include the already described defects of the eyelids, trichiasis, distichiasis, violations of hygiene content, very dusty premises, as well as traumatic effects.

Diseases of the nasolacrimal canal

Pasteurella multocida in rabbits is the most frequent infectious disease. Rabbits with pasteurellosis often come with eye diseases, such as conjunctivitis, epiphora (lachrymation), purulent discharge from the eyes, blockage of the nasolacrimal canals and dacryocystitis. With only local antibiotic therapy, inflammatory changes in the lacrimal canal are quite resistant to treatment, in many cases this leads to the development of a chronic disease. Rinsing of the nasolacrimal canal, depending on the severity of the process, should be carried out twice-thrice or once a week. As a washing solution, saline is recommended for use with the addition of an antibiotic to which there is sensitivity. In parallel, dacryocystitis is treated with drops containing antibiotic, to which sensitivity is determined on the basis of bacterial inoculation. Eye drops should be instilled 5 times a day for a week, then the prolongation of the course depends on the severity of the symptoms. The application of ointments for dacryocystitis is contraindicated, since ointments can lead to blockage of lacrimal passages.

Diseases of the cornea of rabbits

Clinical symptoms associated with corneal diseases

Corneal diseases in rabbits are characterized by clinical signs associated with pain. The surface of the cornea is very well innervated by sensory nerve fibers, especially in the center. Even slight damage to the epithelium leads to lacrimation, blepharospasm, conjunctival hyperemia and reflex uveitis, which is accompanied by myosis and Tyndall effect; when stimulating painful tactile receptors, an increased amount of protein is produced in the aqueous humor of the eye chambers, pupils constriction and congestion hyperemia are observed. This axon-reflex is responsible for the manifestation of clinical symptoms of anterior uveitis and the occurrence of pain that occurs with most eye diseases. Lacrimation as a clinical symptom of corneal diseases is observed in all animal species, except for those that do not have tear fluid production. Diseases of the cornea can lead to its turbidity, swelling, scar formation, vascularization.

Corneal ulcer Corneal ulcer is caused by damage to the epithelium of the cornea, which leads to the destruction of the epithelium and damage to various parts of the stroma. The most frequent ophthalmologic pathology in rabbits is ulceration of the cornea. Ulcers can be classified as non-healing, sterile, infected and rapidly progressing. There are many reasons that can cause corneal ulcers in rabbits, and all of them must be consistently excluded in this pathology. Each state of the eye, leading to pain and irritation, can cause further damage to the cornea and aggravation of the ulcer, for this reason a thorough ophthalmological examination should always be carried out.

Clinical Symptoms Epiphora (lachrymation), blepharospasm, and conjunctival hyperemia are the most frequent clinical manifestations of corneal ulcers in rabbits. Deficiency of the corneal epithelium and stroma can be seen with the naked eye, however, it is recommended to stain the surface of the cornea with fluorescein in order to visualize the size and depth of the defect. At the same time, symptoms of anterior uveitis, such as miosis and Tyndall effect, can be observed.

Conclusion

Orbital operations Removal of the eyeball. Poorly organized medical work is the main cause of irreversible processes in eye diseases, when the last option to save the life of an animal remains the removal of the eyeball. This operation on the head is painful and characterized by significant bleeding. Therefore, before surgery, animals are prescribed drugs that increase blood coagulability, and the operation is carried out at a high rate under general anesthesia. Enucleation of the eyeball is the removal of the eyeball with partial preservation of the conjunctiva and eyelids. After the preparation of the operating field, the eyelids are moved apart and, retreating 0.2-0.5 cm from the arch of the conjunctiva towards the orbit, dissect the conjunctiva around the eyeball, holding it with tweezers. Then scissors are inserted into the depth of the orbit, cross the muscles, gradually remove the eyeball from the orbit and cross the optic nerve. With neoplasms, the lacrimal gland and the third eyelid are removed. Bleeding from the eye artery is stopped by applying a hemostatic tweezers. The cavity is washed with a warm antiseptic solution and swabbed with gauze tampons impregnated with rivanol or furacillin solution. The eyelids are temporarily brought together by a nodular suture, which is removed for 2-3 days. Further treatment consists in systematic processing of the orbit cavity before filling it with granulations and coating with conjunctiva. The exenteration of the eyeball is an operative removal of the eyelids and periorbits with the tissues enclosed in it, usually without preservation of the eyelids. This operation is performed with deep lesions of the eye tissues or with neoplasms. Under the upper eyelid, up to its arch, enter the index finger and under its control cut the skin of the eyelid near and along the upper edge of the orbit. The same incision is made at the base of the lower eyelid near the lower edge of the orbit. After this stupid way separate the cut off eyelids and all soft tissues together with the eyeball, a pathological tissue up to the orbit (periosteum). Then all the prepared tissue is pulled outward, curved scissors are introduced into the orbit and the eye muscles and optic nerve are cut as close to the bone as possible. Remove the remains of soft tissues by scissors and curette, the wound is cleaned of blood clots, pieces of tissue and sprinkled with antiseptic solution. The cavity of the orbit is swabbed with sterile tampons. Provisional seams and a bandage bandage are placed on the edges of the wound. In the postoperative period, the provisional seams are removed for 2-3 days, tampons are removed, the wound is treated with antiseptic powder, and seams are applied. If there are signs of inflammation, the orbit cavity is drained, and the wound is sutured in part.

References:

1. Aurorov VN, Lebedev LV Veterinary ophthalmology. - M .: Agropromizdat, 1985.

2. Avrsrov V.N. Allergic eye diseases of farm animals. - Lecture for universities. - Voronezh, 1991.

3. Herzen PP, Aranchs SV, Skrypnik V.I. and others. Operative surgery in veterinary medicine. - Poltava, 1998.

4. Kopenkin EP Diseases of the eyes of dogs and cats. Moscow: ZooMedVet, 2002. -4.1.

5. Maychuk Yu.F. Allergic eye diseases. - Moscow: Medicine, 1983.

6. Novokainovye blockades, intravascular and intraosseous injections of novocaine in veterinary practice: Textbook / VA. Chervanev, L.P. Troyanovskaya. - Voronezh: VSAU, 2002.

7. Petrakov K.A. Salnko LT, Paniisky SM Operative surgery with the basics of topographic anatomy of domestic animals. - M .: Kolos, 2001. 8. Popesko P. Atlas of the topographic anatomy of farm animals-Bratislava: 1978.-T. 1-3.

9. Therapeutic ophthalmology. Ed. M.L. Krasnova, N.B. Shulpina - M .: Medicine, 1985.

10. Khrustaleva IV, Mikhailov N. Shneyberg Ya.I. Anatomy of domestic animals. - Moscow: Kolos, 1994.

11. Chervanev, V.A. Rickettsial conjunctival-keratitis in cattle: diagnosis, treatment and prevention. - Voronezh: Origins, 1997.

Introduction .

Surgery in the eye area

3. Correction of the fallen eyeball.

4. Operations with eyelid twisting.

5. Operations with eyelid eversion.

Orbitotomy.

8. Extirpation of the lacrimal gland.

9. Peritomy and peridectomy.

Operation of rupture of a continuous posterior synechiae.

Conducted, with negative results of application of mydriatic. Anesthesia is anesthesia with retrobulbar anesthesia. Injection needle is a puncture of the cornea, through which a curved lens curvature is injected into the anterior chamber by Bowman's probe. The curved end of the probe is held between the lens and the back surface of the iris, and rotational movements dissect the posterior synechiae. In the postoperative period, antimicrobial ointments are introduced into the conjunctival sac, atropine drops are added and a protective bandage is applied.

12. Iridectomy. Conducted with the development of continuous rear synechiae in order to create an artificial pupil. Pre-infiltration anesthesia of the retrobulbar space and surface anesthesia. Then in the upper-outer quadrant, the limb is pierced by a spear or scalpel. Through the incision, grasp the edge of the iris with eye pincers, extract it and use a pointed scissor to excise a triangular flap. After that, the remainder of the iris is sent to the anterior chamber, atropine drops are installed, antimicrobial ointment is injected and a protective bandage is applied.

13. Evisceration of the eye.

Perform with panophthalmitis, penetrating wounds of the cornea with the loss of the lens and vitreous body. The operation is performed with a combination of anesthesia. Through the incision of the cornea insert a branch of the eye scissors and remove the cornea along the limb. The contents of the eyeball are scraped with a sharp spoon until the sclera, the eyelids are removed, the cuff is swabbed with antibiotics and close seams are applied.

14. Enucleation of the eyeball.

Conducted with panophthalmitis, neoplasms that do not affect the tissue of the retrobulbar space. Anesthesia is local and general. The straight muscles of the eye are cut and the eye falls out of the orbit. Then, with long curved scissors, the optic nerve and eyeball puller are cut. In the cavity lay a swab, impregnated with disinfectant solution, and on the eyelids impose one knotty seam, so as not to drop a tampon. Remove the tampon a day later, and then in the orbit cavity lay an eye antiseptic ointment.

15. Exentary eye socket.

Performed with malignant neoplasms, with broken bones with eye damage. The operation is performed under general and local anesthesia. Make a circular incision in the eye area within its undamaged parts, without opening the conjunctival cavity. For what in large animals, a finger is inserted into it, and in the small animals, the end of the tweezers is introduced. After dissection of the tazorbital fascia, the eyes are eared out with the surrounding tissues. At the optic opening, the optic nerve and retractor of the eyeball cross, and the eye, together with the tumor surrounding the muscles and fat, is removed. During the operation, there is severe bleeding, which is not trying to stop, but speeds up the operation. After removing the eye from surrounding tissues, the entire cavity is swabbed, and if there are residual tumor in the periorbital cavity, then they are removed. The operation is completed by removing blood clots, dusting the cavity, tight tamponade and applying sutures to strengthen the tampon with which the final stop of bleeding is carried out. After 24 hours, the swabs are removed, the wound cavity is treated with antiseptics, loose plugging and overlapping sutures. When the granulation tissue appears, the wound is treated with antimicrobial ointments. The healing of the orbit ends with scarring and epithelization after 2.5-3 weeks.

Diagnosis, treatment and prevention of neoplasm of new ores in animals Neoplasms of the eye and its adnexal protective formations are found in all kinds of domestic animals. According to the incidence of tumors, the first place is occupied by cattle and dogs, and then horses and cats go, rarely tumors are observed in pigs and birds. Unfortunately, veterinary medicine does not yet have a well-developed system for recording tumor diseases and animal mortality, as in medical science. Therefore, despite a significant amount of publications, material on tumors observed in animals, there is still no generalized data reflecting the true position of the incidence and prevalence of tumors among animals.

Hempe D. (1974) studied 263 dogs with tumor of the organ of vision, while he found that malignant tumors were found in 62% of cases, and benign in 38% of cases. The localization of the tumor of the organ of vision was as follows, eyelids - 33.1%, conjunctiva 4.2%, intraocular tumors 34.2%, orbits - 28.5%. In domestic and agricultural animals, new orbital neoplasms can be both benign and malignant (Avrorov AV, Lebedev AV 1983). A tumor growing in an orbit exerts pressure not only on the retrobulbar tissues, but also on the vessels of the eye, the optic nerve and the eye itself (Fomin, KA 1968). The purpose of our research was to diagnose orbital neoplasms in domestic animals, to perform a surgical operation to remove the tumor of the orbit, histological examination of tumor tissue, further treatment and post-operative monitoring of sick animals.

We established that the main symptom of the orbital tumor is exophthalmos. In all animals studied, the eye is not only bulging, but is also diverted to either side. According to the anamnestic data, with intensive growth of the tumor of the orbit, the exophthalmus progresses. In advanced cases, the mobility of the eyeball and the direction of the tumor are more or less disturbed. All the sick animals had eyelid swelling, periorbital parasthesia, ocular pain of varying intensity. With the appearance of exophthalmos, there is a decrease in visual acuity, narrowing of the field of vision. In fifty percent of cases, the visual functions of the affected eye are completely lost, in other cases greatly reduced. After a clinical examination of the animals, a surgical removal of the neoplasm was performed. Animals were premedicated with 0.1% solution of atropine sulfate, and after 10 minutes anesthesia was given: ventrakvil, and romethar. The orbit region was processed.

The animal was fixed in a lateral position. Before the beginning of the operation, analgesia of the retrobulbar space was carried out, and infiltration anesthesia of the eyelid 2% of p-om novocaine. After anesthesia, a circular incision was made in the eye area within the tumor-intact tissues, trying not to open the conjunctival cavity, for which the end of the tweezers was inserted into it. Then a dense tarzorbital fascia was cut along the edge of the orbit and proceeded to ejaculate the eye, for which a Volkmann spoon and scissors were used. We carry out this manipulation along the entire circumference of the eye throughout the entire periorbital cavity to the opening of the optic nerve. Scissors cross the optic nerve and eye together with surrounding muscles, retrobulbar fat and tumor is removed. The entire orbital cavity is checked with a finger on the condition of the walls of the peri-orbit. Healthy tissue is felt smooth, smooth, elastic consistency. Remains of the tumor are felt tuberous and dense, they were picked out with a Folkman spoon, and then the whole orbit cavity was plastered. The operation is completed by dusting the orbit cavity with an antiseptic powder and a tight tamponade. To keep tampons in the cavity of the orbit, several knotty sutures were applied to the eyelids. The postoperative period is the same as after the enucleation of the eyeball. However, we do not recommend suturing of the eyelids after granulation and scarring of the operated area. Sections of tissues were stained with hemothoxylinosein and then histologically and cytologically examined under a microscope.

The tumor is constructed according to the type of glandular tissue. Epithelial proliferation in protozoan-like formations in the form of glandular-tubular structures is observed. The tumor is represented by monomorphic cells that form the papilla structure, with a polysacral arrangement of the nuclei along the periphery of the cells. In addition to glandular, the tumor is represented by a mesenchymal component in the form of interlayers and strands of fibrous tissue. In the glandular component epithelial cells are small, prismatic and cubic in shape with rounded nuclei rich in chromatin. Fibers of fibrous tissue form bundles that are intertwined with each other. Fat cells of unequal size, irregular rounded shape, they are characterized by dystrophic processes, the nuclei are located on the periphery. Muscular tissue is represented by tumor muscle cells of a spindle-shaped shape, which collect in bundles going in different directions. At the border with the surrounding normal tissues, the tumor is indistinctly limited. Epithelial tissue retained its structure and position of the rows at the border with the tumor. Other tissues are in a state of necrosis, the nuclei of cells are in the state of karyopicosis, karyorexis and karyolysis. There are numerous metastases of the glandular structure of the tumor, which indicates its aggressive nature of growth.

Macroscopically, the tumor represents a serous-colored formation of a dense texture, diffusely spreading across all tissues of the orbit. The tumor is abundantly blooded, can grow to such a size that completely covers the eyeball. Due to the tumor's pressure on the eyeball, it can gradually become atrophic. The surrounding tissue is in a state of necrosis. Based on the clinical picture, pathological and anatomical changes, histological and cytological studies, we concluded that this tumor, by the presence of the tissue components presented in it, can be named using the histological classification of fibrolipomyo adenocarcinoma. According to the presence of tumor metastases, it is possible to speak about the malignant nature of its growth, therefore, the earlier a complex diagnosis is made and the earlier a surgical operation is performed, the more hope for a successful outcome of the disease. In connection with the fact that the lesion affects all orbital structures, it fuses with the sclera of the eyeball, causes its atrophy, the eye as an anatomical organ was not preserved in any case. Growth of the tumor with the bone wall of the orbit was not noted, but we believe that this process is possible if delayed with the operation, at later stages of the development of the pathological process.

After the operation, the animals begin a long recovery period. At this time, a very important factor is the correct dietary feeding and maintenance of animals. Animals must be constantly shown to the doctor. Relapses during the observation period (1 year) did not occur.

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