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1.
Semina ciênc. agrar ; 41(06,supl. 2): 3155-3164, 2020. ilus
Artigo em Inglês | VETINDEX | ID: biblio-1501675

Resumo

The objective of this study was evaluate the maintenance of the corneal endothelium of horses in cold EUSOL-C® preservation medium over different periods (seven and 14 days) using scanning electron microscopy. A total of 20 pairs of eyes from horses were analysed. The corneas were divided into four groups of 10 corneas each (G1, G2, G3 and G4): G1 - the samples were kept in the preservation medium for seven days; G3 - the samples were kept in the preservation medium for for 14 days; G2 and G4 were formed by the control corneal buttons of G1 and G3, respectively. The average cell loss observed in G1 was 7.62%, in G2 it was 7.04%, in G3 9.12% and in G4 7.16%. No statistically significant differences were observed between the four groups. It was concluded that the Eusol-C® hypothermic preservation medium provided satisfactory preservation of the corneal endothelium in equine species for up to 14 days.


Objetivou-se avaliar a manutenção do endotélio da córnea de equinos em meio de preservação a frio EUSOL-C® em diferentes períodos de acondicionamento (sete e 14 dias) utilizando microscopia eletrônica de varredura. Foram avaliados 40 bulbos oculares de 20 equinos. Os bulbos oculares foram divididos em quatro grupos (G1, G2, G3 e G4), nos quais: G1 foi composto por 10 botões corneais acondicionados em meio de preservação para córnea Eusol-C® durante sete dias; o G3 foi formado por 10 botões corneais acondicionados em meio de preservação para córnea Eusol-C® durante 14 dias. O G2 e G4 foram formados pelas córneas controle armazenadas imediatamente em glutaraldeído. A média da perda celular observada no G1 foi de 7,62%, no G2 foi de 7,04 %, no G3 foi de 9,12% e o no G4 foi de 7,16%. Não foram observadas diferenças estatisticamente significativas entre os quatro grupos. Foi possível concluir que o meio de preservação hipotérmico Eusol-C® proporcionou de forma satisfatória a preservação do endotélio da córnea na espécie equina durante o período de até 14 dias.


Assuntos
Animais , Cavalos , Criopreservação/veterinária , Soluções para Preservação de Órgãos , Transplante de Córnea/veterinária , Endotélio
2.
Semina Ci. agr. ; 41(06,supl. 2): 3155-3164, 2020. ilus
Artigo em Inglês | VETINDEX | ID: vti-26745

Resumo

The objective of this study was evaluate the maintenance of the corneal endothelium of horses in cold EUSOL-C® preservation medium over different periods (seven and 14 days) using scanning electron microscopy. A total of 20 pairs of eyes from horses were analysed. The corneas were divided into four groups of 10 corneas each (G1, G2, G3 and G4): G1 - the samples were kept in the preservation medium for seven days; G3 - the samples were kept in the preservation medium for for 14 days; G2 and G4 were formed by the control corneal buttons of G1 and G3, respectively. The average cell loss observed in G1 was 7.62%, in G2 it was 7.04%, in G3 9.12% and in G4 7.16%. No statistically significant differences were observed between the four groups. It was concluded that the Eusol-C® hypothermic preservation medium provided satisfactory preservation of the corneal endothelium in equine species for up to 14 days.(AU)


Objetivou-se avaliar a manutenção do endotélio da córnea de equinos em meio de preservação a frio EUSOL-C® em diferentes períodos de acondicionamento (sete e 14 dias) utilizando microscopia eletrônica de varredura. Foram avaliados 40 bulbos oculares de 20 equinos. Os bulbos oculares foram divididos em quatro grupos (G1, G2, G3 e G4), nos quais: G1 foi composto por 10 botões corneais acondicionados em meio de preservação para córnea Eusol-C® durante sete dias; o G3 foi formado por 10 botões corneais acondicionados em meio de preservação para córnea Eusol-C® durante 14 dias. O G2 e G4 foram formados pelas córneas controle armazenadas imediatamente em glutaraldeído. A média da perda celular observada no G1 foi de 7,62%, no G2 foi de 7,04 %, no G3 foi de 9,12% e o no G4 foi de 7,16%. Não foram observadas diferenças estatisticamente significativas entre os quatro grupos. Foi possível concluir que o meio de preservação hipotérmico Eusol-C® proporcionou de forma satisfatória a preservação do endotélio da córnea na espécie equina durante o período de até 14 dias.(AU)


Assuntos
Animais , Cavalos , Soluções para Preservação de Órgãos , Criopreservação/veterinária , Transplante de Córnea/veterinária , Endotélio
3.
Acta sci. vet. (Impr.) ; 48(suppl.1): Pub.504-4 jan. 2020. ilus
Artigo em Inglês | VETINDEX | ID: biblio-1458331

Resumo

Background: Limbal melanoma has been diagnosed in dogs and due to progression may cause vision loss and eyeballremoval. Definitive diagnosis is made through histopathological examination. Therapeutic options include full thicknessresection and repair by homologous corneal tissue, synthetic graft material, and enucleation. In this report, we describe acase of limbal melanocitoma in a dog that has been treated successfully with fresh homologous corneoscleral graft.Case: A 5-year-old female Labrador was referred to the Ophthalmology Veterinary Section of the Federal University ofRio Grande do Sul (UFRGS), Porto Alegre, Brazil, with a history of a pigmented mass located on the left eye. Ophthalmicexamination revealed a pigmented mass located at the left temporal limbus with corneal involvement. Surgical excisionfollowed by reconstruction using fresh homologous corneoscleral was recommended. The patient was premedicated withacepromazine (0.05 mg/kg, IM) and meperidine (20 mg/kg, IM). Anaesthesia was induced with propofol (10 mg/kg, IV)and maintained with isoflurane. Atracurium (0.2 mg/kg, IV) was administered to maintain a central eye position. The massand a free margin were removed by full-thickness corneoscleral resection. A corneoscleral graft was harvested from a dogthat had been euthanised for reasons unrelated to this study and sutured with 9-0 polyglactin 910 using a simple interruptedpattern. The mass was immediately fixed in 10% neutral buffered formalin and submitted for histological sectioning androutine staining. Based on the histopathological analysis it was confirmed limbal melanocytoma. Postoperative treatmentconsisted...


Assuntos
Feminino , Animais , Cães , Enucleação Ocular/veterinária , Melanoma/veterinária , Melanócitos/patologia , Sistema Límbico/patologia , Transplante de Córnea/veterinária
4.
Acta sci. vet. (Online) ; 48(suppl.1): Pub. 504, Apr. 15, 2020. ilus
Artigo em Inglês | VETINDEX | ID: vti-745327

Resumo

Background: Limbal melanoma has been diagnosed in dogs and due to progression may cause vision loss and eyeballremoval. Definitive diagnosis is made through histopathological examination. Therapeutic options include full thicknessresection and repair by homologous corneal tissue, synthetic graft material, and enucleation. In this report, we describe acase of limbal melanocitoma in a dog that has been treated successfully with fresh homologous corneoscleral graft.Case: A 5-year-old female Labrador was referred to the Ophthalmology Veterinary Section of the Federal University ofRio Grande do Sul (UFRGS), Porto Alegre, Brazil, with a history of a pigmented mass located on the left eye. Ophthalmicexamination revealed a pigmented mass located at the left temporal limbus with corneal involvement. Surgical excisionfollowed by reconstruction using fresh homologous corneoscleral was recommended. The patient was premedicated withacepromazine (0.05 mg/kg, IM) and meperidine (20 mg/kg, IM). Anaesthesia was induced with propofol (10 mg/kg, IV)and maintained with isoflurane. Atracurium (0.2 mg/kg, IV) was administered to maintain a central eye position. The massand a free margin were removed by full-thickness corneoscleral resection. A corneoscleral graft was harvested from a dogthat had been euthanised for reasons unrelated to this study and sutured with 9-0 polyglactin 910 using a simple interruptedpattern. The mass was immediately fixed in 10% neutral buffered formalin and submitted for histological sectioning androutine staining. Based on the histopathological analysis it was confirmed limbal melanocytoma. Postoperative treatmentconsisted...(AU)


Assuntos
Animais , Feminino , Cães , Melanócitos/patologia , Melanoma/veterinária , Sistema Límbico/patologia , Transplante de Córnea/veterinária , Enucleação Ocular/veterinária
5.
Acta sci. vet. (Impr.) ; 46(supl): 1-4, 2018. ilus
Artigo em Inglês | VETINDEX | ID: biblio-1457915

Resumo

Background: Ocular melanoma is very rare compared to cutaneous melanoma in horses. Definitive diagnosis is made through histopathological examination and treatment options include surgical excision associated with cryotherapy, radiation therapy, and chemotherapy. In this report, we describe a case of conjunctival melanoma in a horse that has been treated successfully with surgical excision associated with cryotherapy.Case: A 15-year-old male Percheron male was referred to the Ophthalmology Veterinary Section of the Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil, with a history of a pigmented mass located on the lower eyelid of the left eye. Ophthalmologic examination revealed ocular discomfort, secretion and a pigmented mass in the left inferior bulbar conjunctiva. The dermatological examination revealed other melanomas in the perineal region. Complete blood count and serum chemistry profile were within normal ranges and prior to surgery the horse was treated with flunixin meglumine (1.1 mg/kg, IV, q 12 h). Sedation was performed with xylazine (0.4 mg/kg, IV) and detomidine hydrochloride (0.01 mg/kg, IV) and then the animal was placed in a retention trunk. The conjunctival mass was resected with a margin of safety. Liquid nitrogen was applied to the tumor site and the adjacent conjunctiva with a copper cryoprobe with one unit of liquid nitrogen. Histopathological examination revealed neoplastic cells containing pigmented melanocytes in the conjunctival submucosa, confirming the diagnosis of conjunctival melanoma. Postoperative treatment was performed with flunixin meglumine (1.1 mg/kg, IV, q 12 h) for 3 days and topical ophthalmic ointment containing neomycin, polymyxin B sulfate and dexamethasone twice daily for one week. Seven days after surgery, the lesion was healed. The patient was followed for 24 months after excision and there was no evidence of recurrence.[...]


Assuntos
Animais , Cavalos , Melanoma/cirurgia , Melanoma/veterinária , Neoplasias Oculares/veterinária , Criocirurgia/veterinária
6.
Acta sci. vet. (Online) ; 46(supl): 1-4, 2018. ilus
Artigo em Inglês | VETINDEX | ID: vti-726502

Resumo

Background: Ocular melanoma is very rare compared to cutaneous melanoma in horses. Definitive diagnosis is made through histopathological examination and treatment options include surgical excision associated with cryotherapy, radiation therapy, and chemotherapy. In this report, we describe a case of conjunctival melanoma in a horse that has been treated successfully with surgical excision associated with cryotherapy.Case: A 15-year-old male Percheron male was referred to the Ophthalmology Veterinary Section of the Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil, with a history of a pigmented mass located on the lower eyelid of the left eye. Ophthalmologic examination revealed ocular discomfort, secretion and a pigmented mass in the left inferior bulbar conjunctiva. The dermatological examination revealed other melanomas in the perineal region. Complete blood count and serum chemistry profile were within normal ranges and prior to surgery the horse was treated with flunixin meglumine (1.1 mg/kg, IV, q 12 h). Sedation was performed with xylazine (0.4 mg/kg, IV) and detomidine hydrochloride (0.01 mg/kg, IV) and then the animal was placed in a retention trunk. The conjunctival mass was resected with a margin of safety. Liquid nitrogen was applied to the tumor site and the adjacent conjunctiva with a copper cryoprobe with one unit of liquid nitrogen. Histopathological examination revealed neoplastic cells containing pigmented melanocytes in the conjunctival submucosa, confirming the diagnosis of conjunctival melanoma. Postoperative treatment was performed with flunixin meglumine (1.1 mg/kg, IV, q 12 h) for 3 days and topical ophthalmic ointment containing neomycin, polymyxin B sulfate and dexamethasone twice daily for one week. Seven days after surgery, the lesion was healed. The patient was followed for 24 months after excision and there was no evidence of recurrence.[...](AU)


Assuntos
Animais , Cavalos , Melanoma/veterinária , Melanoma/cirurgia , Neoplasias Oculares/veterinária , Criocirurgia/veterinária
7.
Ciênc. rural (Online) ; 47(12): 1-5, Dec. 2017. ilus, tab
Artigo em Inglês | VETINDEX | ID: biblio-1479817

Resumo

The goal of this study was to describe the normal values of corneal endothelial cell density and hexagonality in healthy rabbits eyes using contact specular microscopy. Both eyes of 18 rabbits, males and females, of different ages were evaluated. The eyes were divided into three groups of 12 each according to the age range of the animals: G1 (6 months old), G2 (12 months old), and G3 (48 months old). Parameters studied included mean endothelial cell density and hexagonality. For Group I, the mean cell density was 2307 cells per mm2. For GII, the mean cell density was 1895 cells per mm2. For G III, the mean cell density was 1818 cells per mm2. Cell density decreased significantly with aging (P 0.001) among the three groups. Pleomorphism in the rabbits of GI was 74.33±10.08. In the rabbits of GII it was 71.83±11.38. In the rabbits of GIII it was 64.02±28.80. Significant differences (P 0.001) were evident between GI and GIII and GII and GIII but not between Groups I and II. The results showed a decrease in number of cells and hexagonality with aging. Corneal endothelium of rabbits suffers changes due to advancing age both in terms of cell density and morphology.


Objetivou-se avaliar a densidade celular e a hexagonalidade do endotélio da cَrnea de coelhos saudلveis usando um microscَpio especular de contato. Os dois olhos de 18 coelhos, machos ou fêmeas, de diferentes idades foram avaliados. Os olhos foram separados em três grupos de 12 olhos cada em funçمo da idade: G1 (6 meses de idade), G2 (12 meses de idade) e G3 (48 meses de idade). Os parâmetros estudados incluيram a densidade celular e a hexagonalidade. Para o Grupo I, a densidade celular média foi de 2307 células por mm2. Para GII, a densidade celular média foi de 1895 células por mm2. Para G III, a densidade celular média foi de 1818 células por mm2. A densidade celular diminuiu significativamente com o envelhecimento (P 0,001) entre os três grupos. O pleomorfismo nos coelhos de GI foi de 74,33±10,08. Nos coelhos do GII foi 71,83±11,38. Nos coelhos de GIII foi de 64,02±28,80. Diferenças significativas (P 0,001) foram evidentes entre GI e GIII e GII e GIII, mas nمo entre os Grupos I e II. Os resultados revelaram diminuiçمo da densidade celular e da hexagonalidade com o avanço da idade. O endotélio da cَrnea de coelhos sofre alteraçُes devido ao avanço da idade tanto na densidade celular e quanto na morfologia.


Assuntos
Coelhos , Coelhos , Endotélio Corneano , Lagomorpha
8.
Acta sci. vet. (Impr.) ; 45(suppl.1): 01-04, 2017. ilus
Artigo em Inglês | VETINDEX | ID: biblio-1457760

Resumo

Background: Indolent corneal ulcers have been described as superficial ulcers with an associated rim of loose peripheral epithelium Treatment for indolent ulcers include debridement, grid keratotomy, multiple punctate keratotomy, third eyelid flaps, application of cyanoacrylate tissue adhesives, superficial keratectomy, and a debridement with a diamond burr. Case: A 2-month-old female American Quarter Horse was referred to the Ophthalmology Veterinary Section of the Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil, presenting epiphora and blepharospasm. A local veterinarian doctor had prescribed broad spectrum topical antibiotic and anti-inflammatory drops, although there was no positive response to the treatment for the past two weeks. Ophthalmic examination reveals and moderate discomfort in the left eye, epiphora, and mild corneal edema in the area of the defect. Slit lamp biomicroscopy revealed a superficial corneal ulcer with about 6 mm. Corneal epithelium did not adhere to underlying corneal stroma. The remainder of the ophthalmic examination of the left eye was unremarkable. The diagnosis of a corneal ulcer was made based on these clinical signs and fluorescein staining of the cornea where the stain dissects under the unattached epithelial lip. A handheld battery-operated motorized diamond burr, with a 3.5 mm medium grit tip, was utilized to remove the epithelium. The medical treatment included tobramycin eye drops, and flurbiprofen sodium ophthalmic solution, being applied six times daily, after the procedure, during two weeks, and atropine sulphate 1% was applied once a day, during three days. The foal was hospitalized until healing the corneal ulcer. For two weeks, the foal was assessed daily, and, after that, follow-up visits were scheduled weekly for four months. Healing was defined as the point at which the cornea no longer retained fluorescein. […]


Assuntos
Animais , Cavalos , Instrumentos Cirúrgicos/veterinária , Úlcera da Córnea/terapia , Úlcera da Córnea/veterinária , Infecções Oculares/veterinária
9.
Ci. Rural ; 47(12): 1-5, dez. 2017. ilus, tab
Artigo em Inglês | VETINDEX | ID: vti-21337

Resumo

The goal of this study was to describe the normal values of corneal endothelial cell density and hexagonality in healthy rabbits eyes using contact specular microscopy. Both eyes of 18 rabbits, males and females, of different ages were evaluated. The eyes were divided into three groups of 12 each according to the age range of the animals: G1 (6 months old), G2 (12 months old), and G3 (48 months old). Parameters studied included mean endothelial cell density and hexagonality. For Group I, the mean cell density was 2307 cells per mm2. For GII, the mean cell density was 1895 cells per mm2. For G III, the mean cell density was 1818 cells per mm2. Cell density decreased significantly with aging (P 0.001) among the three groups. Pleomorphism in the rabbits of GI was 74.33±10.08. In the rabbits of GII it was 71.83±11.38. In the rabbits of GIII it was 64.02±28.80. Significant differences (P 0.001) were evident between GI and GIII and GII and GIII but not between Groups I and II. The results showed a decrease in number of cells and hexagonality with aging. Corneal endothelium of rabbits suffers changes due to advancing age both in terms of cell density and morphology.(AU)


Objetivou-se avaliar a densidade celular e a hexagonalidade do endotélio da cَrnea de coelhos saudلveis usando um microscَpio especular de contato. Os dois olhos de 18 coelhos, machos ou fêmeas, de diferentes idades foram avaliados. Os olhos foram separados em três grupos de 12 olhos cada em funçمo da idade: G1 (6 meses de idade), G2 (12 meses de idade) e G3 (48 meses de idade). Os parâmetros estudados incluيram a densidade celular e a hexagonalidade. Para o Grupo I, a densidade celular média foi de 2307 células por mm2. Para GII, a densidade celular média foi de 1895 células por mm2. Para G III, a densidade celular média foi de 1818 células por mm2. A densidade celular diminuiu significativamente com o envelhecimento (P 0,001) entre os três grupos. O pleomorfismo nos coelhos de GI foi de 74,33±10,08. Nos coelhos do GII foi 71,83±11,38. Nos coelhos de GIII foi de 64,02±28,80. Diferenças significativas (P 0,001) foram evidentes entre GI e GIII e GII e GIII, mas nمo entre os Grupos I e II. Os resultados revelaram diminuiçمo da densidade celular e da hexagonalidade com o avanço da idade. O endotélio da cَrnea de coelhos sofre alteraçُes devido ao avanço da idade tanto na densidade celular e quanto na morfologia.(AU)


Assuntos
Coelhos , Coelhos , Endotélio Corneano , Lagomorpha
10.
Acta sci. vet. (Online) ; 45(suppl.1): 01-04, 2017. ilus
Artigo em Inglês | VETINDEX | ID: vti-16402

Resumo

Background: Indolent corneal ulcers have been described as superficial ulcers with an associated rim of loose peripheral epithelium Treatment for indolent ulcers include debridement, grid keratotomy, multiple punctate keratotomy, third eyelid flaps, application of cyanoacrylate tissue adhesives, superficial keratectomy, and a debridement with a diamond burr. Case: A 2-month-old female American Quarter Horse was referred to the Ophthalmology Veterinary Section of the Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil, presenting epiphora and blepharospasm. A local veterinarian doctor had prescribed broad spectrum topical antibiotic and anti-inflammatory drops, although there was no positive response to the treatment for the past two weeks. Ophthalmic examination reveals and moderate discomfort in the left eye, epiphora, and mild corneal edema in the area of the defect. Slit lamp biomicroscopy revealed a superficial corneal ulcer with about 6 mm. Corneal epithelium did not adhere to underlying corneal stroma. The remainder of the ophthalmic examination of the left eye was unremarkable. The diagnosis of a corneal ulcer was made based on these clinical signs and fluorescein staining of the cornea where the stain dissects under the unattached epithelial lip. A handheld battery-operated motorized diamond burr, with a 3.5 mm medium grit tip, was utilized to remove the epithelium. The medical treatment included tobramycin eye drops, and flurbiprofen sodium ophthalmic solution, being applied six times daily, after the procedure, during two weeks, and atropine sulphate 1% was applied once a day, during three days. The foal was hospitalized until healing the corneal ulcer. For two weeks, the foal was assessed daily, and, after that, follow-up visits were scheduled weekly for four months. Healing was defined as the point at which the cornea no longer retained fluorescein. […](AU)


Assuntos
Animais , Úlcera da Córnea/terapia , Úlcera da Córnea/veterinária , Cavalos , Instrumentos Cirúrgicos/veterinária , Infecções Oculares/veterinária
11.
Pesqui. vet. bras ; 36(8): 775-780, Aug. 2016. tab, ilus
Artigo em Inglês | LILACS, VETINDEX | ID: lil-797988

Resumo

The aim was to investigate the ultrastructural changes in the corneal endothelium of pigs induced by intracameral 0.05% brilliant blue. Twenty swine corneas were separated into two groups, the right eye bulbs (control group) and the left eye bulbs (experimental group) of the same animal. All the eye bulbs were evaluated with specular microscopy. The cornea of the right eye bulbs was excised and in the left eye bulbs 0.2ml of 0.05% brilliant blue vital dye (OPTH-blue±) was injected into the anterior chamber, where it remained for one minute. Then the anterior chamber was cleaned with a balanced salt solution injection and the cornea was excised too. All the corneas were evaluated by scanning electron microscopy to evaluate the changes on the endothelium caused by the brilliant blue dye. There were no significant differences between the right corneal endothelium cells and the left corneal endothelium cells with scanning electron microscopy after intracameral use of 0.05% brilliant blue dye. The 0.05% brilliant blue dye concentration did not cause deleterious effects for the swine corneal endothelium after intracameral use and can be a choice for safe staining of the anterior capsule of the lens in cataract surgery.(AU)


Com o objetivo de avaliar as alterações ultraestruturais no endotélio corneano suíno induzidas pela aplicação intracameral do corante azul brilhante 0,05%, vinte córneas suínas foram separadas em dois grupos: olhos direitos (grupo controle) e olhos esquerdos (grupo experimental). Inicialmente todos os bulbos oculares foram avaliados por microscopia especular. As córneas dos bulbos oculares do grupo controle foram excisadas, enquanto nos bulbos oculares do grupo experimental foram injetados 0,2ml do corante vital azul brilhante 0,05% na câmara anterior e mantido por um minuto. Após esse período a câmara anterior foi lavada com solução salina balanceada e as córneas foram excisadas. Todas as córneas excisadas foram avaliadas por microscopia eletrônica de varredura para verificar a ocorrência possíveis alterações no endotélio corneano causadas pelo corante. Não foram observadas diferenças ultraestruturais durante a avaliação endotelial por microscopia eletrônica de varredura das córneas do grupo controle e experimental após a aplicação do azul brilhante 0,05% na câmara anterior. O corante azul brilhante na concentração 0,05% não causou danos endoteliais após seu uso intracameral em suínos e pode ser uma alternativa segura para a coloração da cápsula anterior da lente na cirurgia de catarata.(AU)


Assuntos
Animais , Corantes/administração & dosagem , Corantes/toxicidade , Endotélio Corneano , Suínos , Microscopia Eletrônica de Varredura/veterinária
12.
Acta sci. vet. (Impr.) ; 44(supl): 01-04, 2016. ilus
Artigo em Inglês | VETINDEX | ID: biblio-1457530

Resumo

Background: Eyelid apocrine hidrocystoma (AH) is a benign cystic lesion originating from the glands of Moll. These eyelid lesions are rare in cats and there are few cases reported in the literature. The aetiopathogenesis of AH is unknown and the lesion has been interpreted either as proliferative adenomatous tumour or as retention cyst. Definitive diagnosis requires biopsy with microscopic examination. Treatment options for eyelid AH include surgical excision, drainage through aspiration, cryosurgery with liquid nitrogen and chemical ablation. The aim is to report a case of bilateral multiple AH of the eyelids in a cat that was successfully treated with surgical excision. Case: A 5-year-old male Himalayan cat was referred to the Ophthalmology Section in the Veterinary Clinics Hospital of the Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil with a history of pigmented masses in both eyes that had been progressively enlarging over a 1-year period. Ophthalmic examination revealed two cysts on the medial canthus at the eyelid margin in both eyes. In the left eye was observed mild blepharospasm and lacrimation. Cysts were soft, smooth, round and filled with a dark brownish pigment. The remainder of the ophthalmic examination was unremarkable. Surgical excision of the cysts was indicated with a safety margin. The surgical procedure was performed under [...]


Assuntos
Animais , Gatos , Glândulas Apócrinas/veterinária , Hidrocistoma/cirurgia , Hidrocistoma/etiologia , Hidrocistoma/veterinária , Adenoma de Glândula Sudorípara/veterinária
13.
Pesqui. vet. bras ; 36(8): 775-780, Aug. 2016. tab, ilus
Artigo em Inglês | VETINDEX | ID: vti-13987

Resumo

The aim was to investigate the ultrastructural changes in the corneal endothelium of pigs induced by intracameral 0.05 % brilliant blue. Twenty swine corneas were separated into two groups, the right eye bulbs (control group) and the left eye bulbs (experimental group) of the same animal. All the eye bulbs were evaluated with specular microscopy. The cornea of the right eye bulbs was excised and in the left eye bulbs 0.2ml of 0.05% brilliant blue vital dye (OPTH-blue±) was injected into the anterior chamber, where it remained for one minute. Then the anterior chamber was cleaned with a balanced salt solution injection and the cornea was excised too. All the corneas were evaluated by scanning electron microscopy to evaluate the changes on the endothelium caused by the brilliant blue dye. There were no significant differences between the right corneal endothelium cells and the left corneal endothelium cells with scanning electron microscopy after intracameral use of 0.05 % brilliant blue dye. The 0.05% brilliant blue dye concentration did not cause deleterious effects for the swine corneal endothelium after intracameral use and can be a choice for safe staining of the anterior capsule of the lens in cataract surgery.(AU)


Com o objetivo de avaliar as alterações ultraestruturais no endotélio corneano suíno induzidas pela aplicação intracameral do corante azul brilhante 0,05 %, vinte córneas suínas foram separadas em dois grupos: olhos direitos (grupo controle) e olhos esquerdos (grupo experimental). Inicialmente todos os bulbos oculares foram avaliados por microscopia especular. As córneas dos bulbos oculares do grupo controle foram excisadas, enquanto nos bulbos oculares do grupo experimental foram injetados 0,2ml do corante vital azul brilhante 0,05% na câmara anterior e mantido por um minuto. Após esse período a câmara anterior foi lavada com solução salina balanceada e as córneas foram excisadas. Todas as córneas excisadas foram avaliadas por microscopia eletrônica de varredura para verificar a ocorrência possíveis alterações no endotélio corneano causadas pelo corante. Não foram observadas diferenças ultraestruturais durante a avaliação endotelial por microscopia eletrônica de varredura das córneas do grupo controle e experimental após a aplicação do azul brilhante 0,05 % na câmara anterior. O corante azul brilhante na concentração 0,05% não causou danos endoteliais após seu uso intracameral em suínos e pode ser uma alternativa segura para a coloração da cápsula anterior da lente na cirurgia de catarata.(AU)


Assuntos
Animais , Suínos , Endotélio Corneano , Corantes/administração & dosagem , Corantes/toxicidade , Microscopia Eletrônica de Varredura/veterinária
14.
Acta sci. vet. (Online) ; 44(supl): 01-04, 2016. ilus
Artigo em Inglês | VETINDEX | ID: vti-482947

Resumo

Background: Eyelid apocrine hidrocystoma (AH) is a benign cystic lesion originating from the glands of Moll. These eyelid lesions are rare in cats and there are few cases reported in the literature. The aetiopathogenesis of AH is unknown and the lesion has been interpreted either as proliferative adenomatous tumour or as retention cyst. Definitive diagnosis requires biopsy with microscopic examination. Treatment options for eyelid AH include surgical excision, drainage through aspiration, cryosurgery with liquid nitrogen and chemical ablation. The aim is to report a case of bilateral multiple AH of the eyelids in a cat that was successfully treated with surgical excision. Case: A 5-year-old male Himalayan cat was referred to the Ophthalmology Section in the Veterinary Clinics Hospital of the Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil with a history of pigmented masses in both eyes that had been progressively enlarging over a 1-year period. Ophthalmic examination revealed two cysts on the medial canthus at the eyelid margin in both eyes. In the left eye was observed mild blepharospasm and lacrimation. Cysts were soft, smooth, round and filled with a dark brownish pigment. The remainder of the ophthalmic examination was unremarkable. Surgical excision of the cysts was indicated with a safety margin. The surgical procedure was performed under [...](AU)


Assuntos
Animais , Gatos , Hidrocistoma/veterinária , Hidrocistoma/etiologia , Hidrocistoma/cirurgia , Glândulas Apócrinas/veterinária , Adenoma de Glândula Sudorípara/veterinária
15.
Acta sci. vet. (Online) ; 42(suppl.1): Pub. 63, Aug. 15, 2014. ilus
Artigo em Inglês | VETINDEX | ID: vti-30160

Resumo

Background: Intrastromal corneal cysts are uncommon lesions caused by the implantation of corneal epithelial cells in the stroma, and their subsequent intrastromal proliferation, which has often been secondary to trauma. Lamellar keratectomy has been the chosen treatment and diagnosis has been confi rmed by histopathology. In this report, we describe a case of corneal epithelial inclusion cyst in a dog that was successfully treated with lamellar keratectomy.Case: A 10 year old Yorkshire Terrier dog was referred to the Ophthalmology Section of the Veterinary Clinics Hospital of the Federal University of Rio Grande do Sul (UFRGS), presenting an abnormal appearance in the left cornea. The ophthalmic examination revealed a white and elevated mass, measuring approximately 3 mm in the left cornea. Thus, a superficial keratectomy was performed by utilizing an angled ophthalmic disc knife, under general anesthesia, and an operating microscope. In addition, a third eyelid fl ap was performed to protect the cornea. The postoperative treatment involved broad-spectrum antibiotic containing tobramycin 0.3%, and a non-steroidal anti-inflammatory solution of sodium diclofenac 0.1%, administered six times a day for two weeks. In addition, atropine sulphate 1% was applied once a day for five days. After three weeks of follow-up, the third eyelid flap was removed, and there was no evidence of...(AU)


Assuntos
Animais , Cães , Epitélio Corneano/patologia , Cistos/veterinária , Células Epiteliais , Ceratectomia/veterinária
16.
Acta sci. vet. (Impr.) ; 42(suppl.1): Pub.63-30 jul. 2014. ilus
Artigo em Inglês | VETINDEX | ID: biblio-1457256

Resumo

Background: Intrastromal corneal cysts are uncommon lesions caused by the implantation of corneal epithelial cells in the stroma, and their subsequent intrastromal proliferation, which has often been secondary to trauma. Lamellar keratectomy has been the chosen treatment and diagnosis has been confi rmed by histopathology. In this report, we describe a case of corneal epithelial inclusion cyst in a dog that was successfully treated with lamellar keratectomy.Case: A 10 year old Yorkshire Terrier dog was referred to the Ophthalmology Section of the Veterinary Clinics Hospital of the Federal University of Rio Grande do Sul (UFRGS), presenting an abnormal appearance in the left cornea. The ophthalmic examination revealed a white and elevated mass, measuring approximately 3 mm in the left cornea. Thus, a superficial keratectomy was performed by utilizing an angled ophthalmic disc knife, under general anesthesia, and an operating microscope. In addition, a third eyelid fl ap was performed to protect the cornea. The postoperative treatment involved broad-spectrum antibiotic containing tobramycin 0.3%, and a non-steroidal anti-inflammatory solution of sodium diclofenac 0.1%, administered six times a day for two weeks. In addition, atropine sulphate 1% was applied once a day for five days. After three weeks of follow-up, the third eyelid flap was removed, and there was no evidence of...


Assuntos
Animais , Cães , Cistos/veterinária , Células Epiteliais , Epitélio Corneano/patologia , Ceratectomia/veterinária
17.
Semina ciênc. agrar ; 32(3): 1139-1144, jul.-set. 2011. ilus
Artigo em Inglês | VETINDEX | ID: biblio-1437919

Resumo

The transmissible venereal tumor (TVT) is a contagious neoplasm that occurs in sexually mature dogs, usually transmitted by coitus. This tumor normally affects the genital mucosa and is rarely found in any other part of the body. A case of transmissible venereal tumor in the palpebral conjunctiva of a 3-year old, crossbreed, male dog with a history of an abnormal mass in the right eye was presented. Ophthalmic examination revealed a mass originated from the lower eyelid conjunctiva of the right eye. No other ocular abnormalities were detected. Cytological examination was carried out and the diagnosis was TVT. The dog was treated with lyophilized vincristine sulphate intravenously, once a week, for four weeks. Despite the atypical clinical presentation, the response to chemotherapy with vincristine was excellent leading to complete regression of the neoplasm and no relapse after a year.


O tumor venéreo transmissível (TVT) é uma neoplasia contagiosa que ocorre em cães sexualmente maduros, sendo geralmente transmitido pelo coito. A neoplasia normalmente afeta a mucosa genital e é raramente encontrada em outras partes do corpo. Apresentamos um caso de tumor venéreo transmissível na conjuntiva palpebral de um cão macho, sem raça definida, com três anos de idade e histórico de presença de uma massa na conjuntiva palpebral inferior do olho direito. Não foram detectadas outras alterações oculares. O diagnóstico citológico da massa foi TVT. O cão foi tratado com sulfato de vincristina por via intravenosa, uma vez por semana, durante quatro semanas. Embora a apresentação do caso seja atípica, a resposta à quimioterapia foi excelente, levando a regressão completa da neoplasia, sem recorrência após um ano.


Assuntos
Animais , Cães , Tumores Venéreos Veterinários , Neoplasias Urogenitais/veterinária , Túnica Conjuntiva/anormalidades , Doenças do Cão
18.
Acta sci. vet. (Impr.) ; 39(1): 01-06, 2011. ilus
Artigo em Inglês | VETINDEX | ID: biblio-1456829

Resumo

Squamous cell carcinoma (SCC) is a locally invasive malignant tumor of the squamous epithelial cells. This neoplasm affects the eyelid, conjunctiva and third eyelid as well as the cornea. The SCC is the most common neoplasm of equine eye and ocular adnexa. Breeds, Appaloosas, American Paint Horses, Thoroughbreds, and Quarter Horses are reported in literature as being the most predisposed ones to SCC. Although presenting a common occurrence, SCC in the third eyelid of horses is rarely reported in literature. This paper aims to describe clinical and pathological signs, and a surgical intervention of a squamous cell carcinoma case in the third eyelid of a horse.[...]


Assuntos
Animais , Carcinoma/patologia , Cavalos/classificação , Carcinoma de Células Escamosas/patologia , Membrana Nictitante/patologia
19.
Acta sci. vet. (Online) ; 39(1): 01-06, 2011. ilus
Artigo em Inglês | VETINDEX | ID: vti-381297

Resumo

Squamous cell carcinoma (SCC) is a locally invasive malignant tumor of the squamous epithelial cells. This neoplasm affects the eyelid, conjunctiva and third eyelid as well as the cornea. The SCC is the most common neoplasm of equine eye and ocular adnexa. Breeds, Appaloosas, American Paint Horses, Thoroughbreds, and Quarter Horses are reported in literature as being the most predisposed ones to SCC. Although presenting a common occurrence, SCC in the third eyelid of horses is rarely reported in literature. This paper aims to describe clinical and pathological signs, and a surgical intervention of a squamous cell carcinoma case in the third eyelid of a horse.[...](AU)


Assuntos
Animais , Carcinoma/patologia , Cavalos/classificação , Carcinoma de Células Escamosas/patologia , Membrana Nictitante/patologia
20.
Vet. foco ; 7(2): 185-197, jan.-jun. 2010. ilus
Artigo em Português | VETINDEX | ID: biblio-1502790

Resumo

A catarata é a principal causa de cegueira tratável em cães, para qual a única forma de tratamento é a remoção cirúrgica. Sua origem pode ser metabólica, senil, inflamatória, tóxica, nutricional, induzida por fármacos, traumática ou primária relacionada à raça. O diagnóstico é realizado após a obtenção de midríase e utilizando a biomicroscopia com lâmpada de fenda. O diagnóstico diferencial deve ser feito de esclerose da lente. Nos últimos anos, o sucesso da remoção da catarata tem aumentado, principalmente após o desenvolvimento da técnica de facoemulsificação.Este trabalho é uma revisão de literatura sobre catarata em cães, incluindo etiologia, patogenia, sinais clínicos, diagnóstico, tratamento e prognóstico desta afecção


Cataract is a leading cause of treatable blindness in dogs. Surgery is the only method of restoring vision in a patient blinded by cataracts. Its origins may be due to hereditary, metabolic, senile changes, trauma, nutritional deficiencies, toxins, drugs, radiation therapy, and inflammation. Diagnosis of cataracts is made after mydriasis using slit-lamp biomicroscopy. The differential diagnostic for cataracts is nuclear sclerosis. Surgery is the only method of restoring vision in a patient blinded by cataracts. The success rate of cataract surgery has risen significantly during lastears, especially after introduction of phacoemulsification. This paper is a study based in literature review, about cataract in dogs, including etiology, pathogenesis, diagnostic, options of treatment and prognosis of this affection


Assuntos
Masculino , Animais , Extração de Catarata/veterinária
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