Parâmetros oftálmicos em diferentes espécies de cervídeos brasileiros mantidos em cativeiro

Pós-graduação em Cirurgia Veterinária - FCAV

Estudo prospectivo do desenvolvimento biométrico de olhos com catarata congênita e do desenvolvimento

Pós-graduação em Pesquisa e Desenvolvimento (Biotecnologia Médica) - FMB

A new surgical technique to treat corneal perforations using amniotic membrane and surgical adhesive

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Sildenafil citrate on retrobulbar and retinal circulation of rabbits

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Ocular ultrasonography and ultrasound biomicroscopy: applicability in clinical and ophthalmic surgery

With the advent of high frequency transducers, the use of ocular ultrasound has become widely used because it provides definitions of major ocular structures. This diagnostic tool is useful in the evaluation of ophthalmic injuries, and also used for qualitative and quantitative evaluation of intraocular and orbital lesions. It is a noninvasive, safe and fast, easy to use and can be performed in an awake animal. The ocular ultrasonography is indicated in cases of ocular opacity, when the ophthalmic examination cannot be done, and in eyes with ocular trauma or suspected orbital disease. Ultrasound biomicroscopy (UBM) is a diagnostic tool with high cost and sedation or general anesthesia is necessary, but has the advantage of evaluating structures poorly defined or visualized in the anterior segment of the eye. Therefore, this paper aims to show the importance of ocular ultrasonography and UBM to veterinary practitioners, and to demonstrate its advantages and indications in ophthalmic routine.

Considerações anestésicas para realização da cirurgia de facoemulsificação em cães

Cataract is the leading cause of blindness in dogs. It is defined as an opacity in the lens and is independent of resulting visual deficit. Although there are a growing number of studies related to drug therapy of cataract, the treatment is still considered exclusively surgical. Among the techniques used to remove cataract, phacoemulsification is the best performer. Anesthesia in intraocular surgery has several peculiarities, which are essential to successfully conduct phacoemulsification in dogs. In these patients, a safe and effective anesthesia requires the maintenance of intraocular pressure close to normal, preventing the activation of the oculo-cardiac reflex and complete immobilization of the eye. The appropriate conditions for such surgical procedures can be established through the use of drugs from different pharmacological groups for premedication, induction and maintenance of anesthesia, making a balanced anesthesia. This work was compiled from a careful review of the literature on anesthesia in cataract surgery. Considerations on the pre-medication, induction and maintenance of anesthesia are discussed, aiming to contribute to the phacoemulsification becomes more safe and suitable for the anesthesiologist and the surgeon as well as comfortable for dogs undergoing surgery

Alterações hematológicas associadas ao hifema em cães

Hyphema is an intraocular hemorrhage that can result from many ocular and/or systemic disorders. It is an important clinical sign, since it may appear in the initial stages of some diseases or haematological disorders, acting as an initial marker for early diagnosis. The hematologic disturbances that predispose animals to present hyphema are: Thrombocytopenia, von Willebrand Disease, Scott Syndrome, Disseminated Intravascular Coagulation and Hyperviscosity Syndrome due to Multiple Myeloma. Each of the differential diagnoses due to hematological changes from the appearance of hyphema in dogs shows clinical relevance and particular ocular signs

Efeitos do citrato de sildenafila sobre a neuroproteção na neuropatia óptica, em ratos (Lewis/SsNHsd) com glaucoma agudo

Pós-graduação em Cirurgia Veterinária - FCAV

Micropartículas de metotrexato e ácido poli lático-co-glicólico obtidas por “spray-drying”

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Parâmetros oftálmicos em espécimes de Cuniculus paca criadas em cativeiro

Pós-graduação em Cirurgia Veterinária - FCAV

Efeitos da injeção de lidocaína 1% sem conservantes, em olhos de coelhos da raça Nova Zelândia Branco com uveíte

Pós-graduação em Cirurgia Veterinária - FCAV

Biometria ocular na espécie Cebus apella

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Comparação entre as técnicas de extração extracapsular e facoemulsificação de acordo com as complicações na catarata canina: revisão sistemática

A catarata é a afecção da lente mais comum em cão, caracterizada por uma opacidade do cristalino e alteração de comportamento devido ao déficit visual. O exame oftálmico adequado e completo da lente permite a classificação adequada da catarata auxiliando na escolha do melhor tratamento de cada paciente. O tratamento preconizado para a catarata é o procedimento cirúrgico, que associado com o uso de anti-inflamatórios, midriáticos e antibióticos pré-operatórios e pós-operatórios melhoram os resultados visuais e previnem algumas complicações. A remoção da lente pode ser feita pelas técnicas de discisão, extração intracapsular, extração extracapsular e facoemulsificação, sendo que a escolha correta da técnica para cada caso contribui para o sucesso do procedimento e diminui as complicações pós-operatórias, porém as técnicas de escolha para a remoção da catarata são a extração extracapsular e a facoemulsificação. O objetivo da revisão sistemática é comparar as complicações de duas das técnicas para extração da catarata, extração extracapsular e facoemulcificação, ressaltando qual a técnica que apresentou menores complicações em cães. Foram analisados dez artigos pesquisados nas bases de dado PubMed e Google Acadêmico, sendo complementados com o uso de livros. Foram encontradas como complicações perda da visão, glaucoma, descolamento de retina, hemorragia intraocular, ruptura da cápsula posterior, alterações corneanas, endoftalmites, sinéquia posterior, fotofobia, blefaroespasmo e hiperemia conjuntiva. Essas complicações foram descritas em ambas as técnicas, porém inúmeros fatores

Eficácia e segurança da ceratoplastia endotelial no tratamento da ceratopatia bolhosa pseudofácia e afácia: revisão sistemática e metanálise

Pós-graduação em Bases Gerais da Cirurgia - FMB

Ultrasound-assisted periconal ocular blockade in rabbits

ObjectiveThis study aimed to evaluate the benefit and specifically the feasibility of using ultrasound in ophthalmologic periconal block, and the occurrence of complications.Study designProspective experimental study.AnimalsTen healthy New Zealand White rabbits (6-8months of age), weighing 2.0-3.5kg.MethodsRabbits were anesthetized by intramuscular injection of acepromazine (1mgkg(-1)), ketamine (30mgkg(-1)) and xylazine (3mgkg(-1)). Ultrasound-assisted periconal block with lidocaine was performed on 18 eyes. Intraocular pressure was measured by applanation tonometry whereas corneal sensitivity was assessed using an esthesiometer, before and after each periconal anesthesia.ResultsIn all 18 eyes, it was possible to adequately visualize the needle shaft within the periconal space, as well as muscular cone, optic nerve and local anesthetic solution spread. Lidocaine 2% without epinephrine (0.790.19mL) was injected into the periconal space. There was no statistical difference between the intraocular pressure (meanSD) measured before (10.9 +/- 2.9mmHg) and after (11.9 +/- 3.8mmHg) the periconal anesthesia (p=0.38). The effectiveness of the ultrasound-assisted technique was shown according to the values for corneal sensitivity, assessed before and after periconal anesthesia (p<0.0001). Complications were not observed in this study.ConclusionsEye ultrasonography allowed visualization of all anatomic structures necessary to perform a periconal block, as well as the needle insertion and anesthetic spread in real time. Further studies are required to prove the real potential of ultrasound for reducing the incidence of complications associated with ophthalmic blocks, especially when anatomic disorders of the eye could potentially increase the risk.Clinical relevanceUltrasonography is a painless, noninvasive tool that may improve safety of ophthalmic regional blocks, potentially by reducing the prevalence of globe perforation or penetration of the optic nerve associated with the needle-based techniques.