Oculopalpebral prosthesis prototype design using the additive manufacturing technique: A case study.

Three-dimensional (3D) printing technology has advanced for applications in the field of reconstructive surgery. This study reports the application of a comprehensive methodology to obtain an anatomical model, using computed tomography and 3D printing, to treat a patient with cancer who designed a prototype oculopalpebral prosthesis for the reconstruction of the affected area of the face (left eye). A personalized prototype was obtained, which adapted to the face of the person, and improved the aesthetics and quality of life. The applied techniques helped to make definitive prostheses using materials that could be permanent. The training and tests carried out in this study favored the understanding and assimilation of the technology and the possibility of applying it to patients in need of facial prosthetic rehabilitation.

[Oculopalpebral trauma in domestic violence]. / Traumatismes oculopalpébraux au cours des violences conjugales.

INTRODUCTION: Oculopalpebral trauma in domestic violence is defined as ophthalmological injuries caused by a spouse. PURPOSE: To describe the epidemiology and management of oculopalpebral injuries caused by domestic violence. PATIENTS AND METHODS: Retrospective descriptive study carried out over a period of 5 years in patients who suffered oculopalpebral trauma from domestic violence. VARIABLES STUDIED: age, sex, profession, visual acuity, blunt instruments, type of injury, treatments. Data processing by Excel 2013 and WPS Office software. RESULTS: We collected 31 patients with a mean age of 34.5±7 years and a sex ratio of 0.3. The most commonly found functional sign was decreased VA in 100% of patients. The mechanism of injury was punching in 71%. Visual acuity was less than 1/20 in 9.7%. Contusion was the most commonly found trauma in 74.19% of cases, and conjunctival hyperemia was seen in 68.2% of cases. Eight patients (25.8%) had undergone surgical treatment. CONCLUSION: Oculopalpebral trauma by domestic violence is serious. Both sexes can be victims. The lesions encountered can affect the functional or even anatomical prognosis of the eye.

Proposition of integrated electrical mechanism and facial prosthesis for eyelid motion on prosthetic oculopalpebral rehabilitation: technical note / Proposta de mecanismo elétrico integrado e prótese facial para movimentação da pálpebra na reabilitação protética oculopalpebral: nota técnica

Surgical reconstruction of large facial defects may not be always possible, therefore extraoral maxillofacial prosthesis is a good restorative option. The oculopalpebral prosthesis has a natural appearance however it can be easily noticed because its eyelids do not move. For esthetic purposes, it is desirable that the prosthetic eyelids open and close synchronously with the contralateral eye, which provides a challenge to the prosthetic reconstruction of the oculopalpebral region. To improve the esthetic outcome, an oculopalpebral prosthesis prototype with mechanical and electric features allowing synchronization of the eyelid motion with the sound eye was planned, designed, and built. An oculopalpebral prosthesis was made in thermoactivated acrylic resin. A gap was created to accommodate an electrical system and allow free motion of a thin eyelid made of silicone attached to the appliance. The movable eyelid was made with medical grade silicone (SILASTIC® MDX4-4210) and connected to an electrical and electronic system responsible to command the opening and closing movements. This mechanical and electrical prototype with the system connected to a sensor, successfully captured the eyelid motion of the contralateral sound eye. The proposed mechanical and electrical system attached to an oculopalpebral prosthesis could successfully establish and synchronize the eyelid movements with the sound eye.

A reconstrução cirúrgica de grandes defeitos faciais pode não ser sempre possível, portanto, a prótese bucomaxilofacial extra-oral é uma boa opção restauradora. A prótese oculopalpebral tem uma aparência natural, mas pode ser facilmente notada pois as pálpebras não se movimentam. Para fins estéticos, é desejável que as pálpebras protéticas se abram e se fechem em sincronia com o olho contralateral, o que representa um desafio para a reconstrução protética da região oculopalpebral. Para melhorar o resultado estético, um protótipo de prótese oculopalpebral com características mecânicas e elétricas permitindo a sincronização do movimento da pálpebra com o olho sadio foi planejado, projetado e construído. Uma prótese oculopalpebral foi confeccionada em resina acrílica termoativada. Um nicho foi criada para acomodar umsistema elétrico e permitir o movimento livre de uma pálpebra fina confeccionada em silicone preso ao sistema. A pálpebra móvel foi confeccionada com silicone de grau médico (SILASTIC® MDX4-4210) e conectada a um sistema elétrico e eletrônico responsável por comandar os movimentos de abertura e fechamento. Esteprotótipo mecânico e elétrico com o sistema conectado a um sensor capturou com sucesso o movimento das pálpebras do olho acústico contralateral. O sistema mecânico e elétrico proposto, fixado a uma próteseoculopalpebral, conseguiu estabelecer e sincronizar os movimentos da pálpebra com o olho sadio.

Espectro das anormalidades óculo-palpebrais na paralisa supranuclear progressiva (PSP) ao exame à beira-do-leito / The ocular-eyelid spectrum abnormalities in progressive supranuclear palsy (PSP) in the bedside examination

As alterações da motilidade ocular compõem um dos pilares do complexo sintomático da Paralisia Supranuclear Progressiva. Alguns sinais, tanto oculares quanto palpebrais, podem ser facilmente evidenciados ao exame neuro-oftalmológico à beira-do-leito. Neste artigo os autores ressaltam alguns aspectos óculo-palpebrais que auxiliam no diagnóstico desta curiosa e incomum síndrome parkinsoniana tau-positiva.

The alterations of ocular motility make up one of the pillars of the Progressive Supranuclear Palsy symptom complex. Some signs, both ocular and of the eyelids, can easily be shown during a neuro-ophthalmologic bedside examination. In this article the authors highlight some aspects of motor ocular and eyelid alterations to help diagnose this curious and unusual tau-positive parkinsonian syndrome.

Importância da reabilitação protética da região óculo-palpebral: relato de caso / Importance of rehabilitation of the prosthetic region óculo-palpebral: case report

As perdas buco-maxilo faciais causam grande constrangimento e sofrimento aos seus portadores, especialmente aquelas passíveis de reabilitação somente através da prótese. Este trabalho relata o caso de um paciente, sexo feminino, leucoderma e com 66 anos de idade, atendido na Clínica de Prótese Buco-Maxilo Facial da Faculdade de Odontologia de Pernambuco da Universidade de Pernambuco (FOP/UPE), portador de uma mutilação na região óculo-palpebral que teve como fator etiológico um câncer da região orbitária, descrevendo-se a técnica e a importância da reabilitação protética facial nos aspectos estéticos e psicossociais.

The maxillofacial losses cause great constraint and sadness especially those with need of rehabilitation only through prosthesis. This work present a case of a patient, feminine, leucoderm and 66 years of age, seeking for treatment at Clinic of Maxillofacial Prosthetic of the Dental School of the University of Pernambuco (FOP/UPE). The patient had a mutilation in the oculo-palpebral region and the etiologic factor was a cancer on the orbital region. This case report aimed also to describe its technique and the importance of the facial prosthetic rehabilitation to aesthetic and psicossociais aspects.