Loading...
12 results
Search Results
Now showing 1 - 10 of 12
- Low vision rehabilitation program in myopic macular degeneration: a case reportPublication . Fernandes, Nádia; Araújo, Marta; Carvalho, Tiago; Lança, CarlaIntroduction: Patients with high myopia are at risk of developing myopic macular degeneration (MMD), which leads to vision loss and irreversible visual impairment. Elderly populations are affected by loss of quality of life. Low vision services should offer specialized training programs to help patients overcome difficulties in daily living activities. This study aimed to describe the results of a low vision rehabilitation program (LVR) in a patient with MMD. Methods: A 69-year-old male patient with MMD was included in the LVR at an ophthalmology clinic in Portugal. The LVR had a length of 8 weeks and was divided into two phases. The first phase included the use of prisms for image relocation (IR) with eccentric viewing exercises to stabilize the preferred retinal locus. In the second phase, training with low-vision aids was performed. Best corrected visual acuity (BCVA) for distance and near, contrast sensitivity (CS), reading speed (RS) and face recognition were compared pre and post-rehabilitation. Additionally, the patient had open-angle glaucoma that was treated (glaucoma eye drops and neuroprotection treatment) and monitored by Spectral-domain optical coherence tomography.
- A health promotion protocol to prevent age-related macular degeneration progression: the roles of vitamin D and polyphenolsPublication . Fernandes, NádiaAge-related macular degeneration (AMD) is a chronic progressive ocular disease that causes central vision loss, it is responsible for 8.7% of blindness worldwide, and it is the main cause of visual impairment in developed countries in individuals aged over 60 years, and its incidence is variable late AMD is higher in Europe (0.14%) and in America (0.35%). The prevalence of AMD is increasing due to the growth of the aging population Thus, health promotion and preventive medicine are essential tools to reduce the risk of visual impairment.
- Protozoan eye infections: the challenges of human-animal-ecosystem interactionsPublication . Fernandes, Nádia; Araújo, M.; Carvalho, Tiago; Lança, CarlaBackground. Parasitic infections are significant causes of ophthalmic diseases worldwide, and if not treated timely, they could lead to visual impairment and blindness. Acanthamoeba species and Toxoplasma gondii are the most common protozoal parasites that infect the ocular structure. Prevention methods differ for each pathogen, but several practices are recognized as effective in reducing the risk at the community and personal levels. Education campaigns to promote handwashing after contact with animals and other behavioural adjustments can reduce the community spread of the disease. This study aims to increase awareness of protozoal parasite infections by describing two clinical cases that were diagnosed early and were effectively treated. Methods. A case of a 52-year-old Portuguese man with Acanthamoeba keratitis (patient 1) and a case of a 41-year-old Brazilian man (patient 2) are presented. Complete ophthalmologic examination including best-corrected visual acuity, slit lamp biomicroscopy, dilated biomicroscopic and fundus examinations, specular microscopy, colour fundus photography, and optical coherence tomography was performed at the diagnostic assessment and during the follow-up. The therapeutic strategy was a combination of classic therapy, anti-parasitic, and supplementation (antiinflammatory, pro-immune, and antioxidant properties) that modulate the host immune response. Results. Patient 1 was diagnosed with Acanthamoeba keratitis in both eyes after abusive use of contact lenses; all layers of corneal structure were damaged with higher severity in the left eye; the patient had light perception, photophobia, and hyperaemia; a therapeutic protocol with anti-fungal, anti-septic, anti-parasitic, artificial tear eye drops, vitamin C, D, zinc, copper and selenium was prescribed; after six weeks the patient presented maximum (1.0) visual acuity in both eyes and recovery of corneal layers, with guttate endothelium; non-use of contact lenses was indicated until total infection control. Patient 2 was diagnosed with Toxoplasmosis in the right eye with chorioretinal lesions; the patient was only able to see hand movements; a therapeutic protocol with antibiotic, anti-inflammatory, corticosteroids, bacterial folic acid inhibitor, vitamin C, D, zinc, copper, and selenium was prescribed; after four weeks the patient present better (0.3) visual acuity, resorptive chorioretinal lesion; dietary care recommendations were made. Conclusions. Our results support that early detection (by ocular imaging) and pharmacological therapy (that supports the immune system) lead to recovery of visual function and improvement in quality of life. Health promotion activities and community engagement may be critical to promoting habits and attitudes that reduce the risk of infections, supporting early detection and containment of disease threats. Eye health professionals may be key players in supporting The One Health approach regarding protozoan eye infections.
- Reabilitação visual em pacientes com maculopatias adquiridasPublication . Fernandes, NádiaA deficiência visual atinge 30 milhões de pessoas na Europa (1:30). População sénior crescente: 80% na faixa etária com mais de 60 anos de idade. Mulheres com risco aumentado de perda parcial ou total de visão. DMI é a principal causa de perda de visão, com risco aumentado de outras incapacidades, comorbilidades, quedas e síndroma depressivo. Objetivo do estudo: caracterizar o perfil epidemiológico, oftalmológico e a intervenção reabilitacional aplicada aos pacientes com maculopatias adquiridas atendidos na consulta de baixa visão e reabilitação visual da Clínica Topcare.
- Análise do complexo de células ganglionares maculares na detecção precoce do glaucomaPublication . Pineza, Cátia; Fernandes, Nádia; Araújo, MartaO Glaucoma é uma neuropatia óptica multifactorial caracterizada pela perda de Células Ganglionares Retinianas (CGR) com consequente perda de fibras nervosas retinianas resultando numa limitação visual. O Complexo de Células Ganglionares (CCG) é constituído pelas 3 camadas mais internas da retina: Camada de Fibras Nervosas (CFNR), a Camada de Células Ganglionares (GCL) e a Camada Plexiforme Interna (IPL). Estudos realizados por Tan et al sugerem que no Glaucoma estas camadas são preferencialmente afectadas comparativamente às restantes camadas da mácula, uma vez que contêm os axónios, o corpo e as dendrites das mesmas. Esta teoria é fundamentada por estudos clínicos que defendem que não existe perda de fotorreceptores no Glaucoma. A região macular contém mais de 50% de CGR, desta forma será uma zona preferencial para o estudo e detecção atempada da perda das mesmas. Ahmad (2011) refere que a perda dos axónios das CGR resulta na diminuição da espessura do Nervo Óptico (NO) e da CFNR. Lesões nos axónios das CGR causam perdas no número de células, particularmente na mácula, resultando numa diminuição da espessura da GCL. Muitos estudos têm demonstrado que a eficácia das medições do NO e das estruturas retinianas podem permitir a distinção entre olhos normais e olhos glaucomatosos.
- Baixa visão: adaptação prismáticaPublication . Fernandes, NádiaPrismas em baixa visão: tipos, aplicação clínica, casos clínicos, impacto na qualidade de vida, outcomes.
- Deficiência visual e reabilitação: workshopPublication . Fernandes, NádiaCegueira = perda total. Baixa visão = perda parcial. “More people are blinded by definition than by any other cause” (Colenbrander, 2010).
- O contributo do ortoptista na equipa de saúde em Cabo Verde: cuidados de saúde terciáriosPublication . Fernandes, NádiaDeficiência visual: a) cegueira: para casos de perda total de visão ou quando o indivíduo tem de confiar predominantemente nas habilidades de substituição de visão; b) baixa visão: para casos de menor grau de perda de visão, em que o indivíduo pode melhorar o seu desempenho visual através de ajudas. O indivíduo com baixa visão é aquele que apresenta diminuição do funcionamento visual, mesmo após tratamento e/ ou correção óptica convencional, e tem uma acuidade visual menor que 0.33 a percepção luminosa, ou um campo visual inferior a 10º do seu ponto de fixação, mas que utiliza ou é potencialmente capaz de utilizar a visão para o planeamento e/ou execução de uma tarefa em que a visão é essencial.
- Importance of macular ganglion cell complex evaluation in pituitary macroadenoma: case reportsPublication . Carvalho, Tiago; Fernandes, NádiaPituitary adenomas (PA) are the most common tumor of the Sella turcica brain region, accounting for 12–15% of symptomatic intracranial brain tumors. Usually occurs in adults with no gender predilections. Using Cranial Tomography (CT) and Magnetic Resonance Imaging (MRI) (Fig.1) is possible to classify it as a macroadenoma when size is ≥10 mm. The tumor compression on the optic nerve or chiasm leads to axonal damage that causes visual field (VF) defects, thinning of the retinal nerve fiber layer (RNFL), and a reduction in the macular ganglion cell complex (GCC) thickness measured by Optical coherence tomography (OCT). We present two clinical cases with different management approaches based on a previous structure-function evaluation.
- Choroidal metastasis vs choroidal nevus - EDI OCT findings: case reportsPublication . Carvalho, Tiago; Fernandes, NádiaEnhanced depth imaging optical coherence tomography (EDI-OCT) is a novel imaging modality that has helped retina specialists learn more about the choroid’s role in the eye. As a health professional who develops teamwork with specialists, an orthoptist must know about the higher-resolution images and improved imaging acquisition of lesions that EDI-OCT provides. This poster summarizes the EDI-OCT findings between two clinical entities: choroidal metastasis and choroidal nevus.