Browsing by Author "Silva, D"
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- Alterações morfométricas do endotélio corneano no glaucoma pseudoesfoliativoPublication . Coutinho, I; Pedrosa, C; Santos, C; Mota, M; Silva, D; Ramalho, M; Lisboa, M; Vaz, FIntrodução: Com este trabalho pretende-se analisar a morfometria das células endoteliais corneanas e espessura central da córnea em doentes com glaucoma pseudoesfoliativo (GPX) e glaucoma primário de ângulo aberto (GPAA). Materiais e Métodos: Estudo retrospectivo com 40 doentes. Os parâmetros avaliados, através de microscopia especular, foram: densidade de células endoteliais, coeficiente de variação, percentagem de células hexagonais e espessura central da córnea. Resultados e Conclusões: Não se verificaram diferenças estatisticamente significativas no que diz respeito à densidade e coeficiente de variação das células endoteliais corneanas entre o grupo com GPX e GPAA. Contudo, a percentagem de células hexagonais foi significativamente inferior no GPX, o que poderá constituir um indício de alguma disfunção endotelial.Em relação à espessura central da córnea, verificou-se uma diminuição estatisticamente significativa no grupo GPX. Assim, no glaucoma pseudoesfolitaivo a presença de material fibrilhar na câmara anterior pode contribuir para alterações nas células endoteliais mais rápidas do que seria espectável e em alterações estruturais que se reflectem na menor espessura central da córnea.
- Avaliação da prevalência e caracterização da rinossinusite nos cuidados de saúde primários em PortugalPublication . Barros, E; Silva, A; Vieira, A; André, C; Silva, D; Prata, J; Ferreira, J; Santos, M; Gonçalves, P; Leiria, E; Gonçalves, N; Andrade, SAbstract: To determine RS prevalence, diagnosed at the Portuguese Primary Health Care Centres (PHCC), and to assess diagnostic and treatment practices. Study Design: Epidemiologic, cross-sectional study. Material and Methods:A cohort of subjects attending general practice medical appointments, in selected PHCC, was evaluated. Results: Between May/2008 and June/2009, 1,201 subjects were included with a mean age of 41.7+13.2 years, of which 71% were female. The total prevalence of RS was 19.2%, [n=231; 17.1%, 21.5%; 95% CI]. The prevalence of acute RS was 7.4%, [n=89; 6.0%; 9.0%; 95% CI], and of chronic RS was 13.% [n=156; 11.2%, 15.0%; IC 95%]. The estimated prevalence of RS is high. About 92% of patients with RS presented at least one symptom for disease diagnosis (p<0.001). Conclusions: Half the patients (50%) with RS had already been submitted to, at least, one medical exam. Same relevant difference between RS diagnostic and treatment guidelines and the current practice in Primary Health Care Centres were found.
- Bowman's layer dystrophy with irido-fundal coloboma in the same patient: a case reportPublication . Mota, M; Pedrosa, C; Silva, D; Pires, G; Pêgo, P; Vendrell, C; Prieto, IIntroduction: The corneal dystrophies are rare corneal diseases, defined as bilateral, symmetric and inherited conditions. Ocular coloboma is a congenital defect caused by embryogenesis imperfection, during the sixth week of development. Purpose: The authors report the first clinical case in literature of the association of cornea dystrophy and irido-fundal coloboma. Case report: The authors describe the case of a 34-year-old woman, with decrease visual acuity (VA) in the right and left eyes (RLE). She has had an ocular illness since young, with corneal erosions. Her family members also have alterations in the cornea, her father has held a bilateral corneal transplant. Ophthalmic examination showed a best-corrected visual acuity (BCVA) of 20/40 in the RE and 20/100 in the LE. Biomicroscopy showed an inferior iris coloboma in the LE. A deposition of reticular/granular substance in the Bowman’s layer was observed in both eyes, sparing the limbal portion, compatible with a corneal dystrophy. Fundus examination showed a coloboma in the LE that involves the inferior retina and the optic nerve, no changes in the RE fundus was observed. She started treatment with ocular lubrificant preservative-free eyedrops. The patient has remained stable within 1-year follow-up. Conclusions: This is the first case report of the association of cornea dystrophy and irido-fundal coloboma. The greater decrease in VA in the LE appears to be due to the combination of these two entities in this eye. Despite the Bowman’s layer dystrophy has an autosomal dominant pattern, coloboma seems to have been an acquired change.
- Catarata pediátrica: a nossa experiênciaPublication . Roque, J; Basto, R; Lopes, AS; Silva, D; Pinto, S; Pires, G; Prieto, I
- Changes in choroidal thickness following trabeculectomy and its correlation with the decline in intraocular pressurePublication . Silva, D; Lopes, AS; Henriques, S; Lisboa, M; Pinto, S; Vaz, F; Prieto, IPURPOSE: Evaluate whether there are significant changes in choroidal thickness following trabeculectomy, and how they relate do the decline in intraocular pressure. METHODS: This was a prospective evaluation of 28 eyes who underwent Moorfields modified trabeculectomy. The choroidal thickness was measured via OCT with enhanced depth imaging, before surgery and 1 day, 1 week and 1 month after surgery. Measurements were taken at the fovea, 1000 µm temporal to the fovea and 1000 µm nasal to the fovea. The relationship between choroidal thickness and intraocular pressure was statistically evaluated. RESULTS: The mean intraocular pressure before surgery was 25.07 ± 4.64 mmHg; 8.57 ± 3.62 mmHg after 1 day; 10.36 ± 4.39 mmHg after 1 week and 13.71 ± 5.13 mmHg after 1 month. Mean choroidal thickness increased after trabeculectomy with maximal values at 1 week. The largest increase was found at the fovea, with an average before surgery of 253.54 ± 62.01 µm; 286.75 ± 64.20 µm at 1 day, 286.36 ± 63.14 µm at 1 week and 271.00 ± 60.31 µm at 1 month. Increase in choroidal thickness was significant 1 day and 1 week after surgery in the foveal (p = 0.012, p = 0.007) and temporal (p = 0.040, p = 0.000) locations and 1 week postoperatively on the nasal location (p = 0.016). None of them were significant at 1 month after surgery. Preoperative IOP and choroidal thickness were correlated at all macular locations (ρ = 0.449-0.525, p = 0.004-0.016) yet no correlation was found between increase in choroidal thickness and decline in intraocular pressure in the postoperative period. CONCLUSION: Choroidal thickness appears to increase temporarily after trabeculectomy and these changes were not correlated with the decline in intraocular pressure. Further research is required to fully understand this phenomenon.
- Comprimentos Axiais Extremos e Cálculo de Lentes Intraoculares com o IoImaster - Análise de 78 OlhosPublication . Silva, D; Ramalho, M; Pedrosa, C; Coutinho, I; Mota, M; Lopes, A; Pêgo, P; Pinto, S; Vendrell, C; Prieto, IObjetivo: Avaliar a magnitude do erro das fórmulas usadas no cálculo de lentes intraoculares (SRKII, HofferQ, Holladayl, SRK-T) para comprimentos axiais extremos (<22mm e >26mm) e comparar o desempenho relativo destas fórmulas nos dois subgrupos. Métodos: Avaliaram-se retrospectivamente 78 olhos de 65 doentes, com biometria realizada no IolMaster*. Destes, 48 têm comprimento axial inferior a 22mm e 30 têm comprimento axial su- perior a 26mm. A refração prevista calculada pelas diferentes fórmulas foi comparada com a re- fração um mês após a cirurgia. Testou-se a correlação entre comprimento axial e erro verificado. Resultados: A refração final média foi 0,18+0,65D para comprimentos axiais inferiores a 22mm e -1,48+1,03D nos superiores a 26mm. O erro absoluto médio (diferença entre o cálculo de lente e refração final) para comprimentos axiais inferiores a 22mm foi menor na fórmula HofferQ, diferindo com significado estatístico da Holladayl (p=0,016), mas não da SRK-T (p=0,350). Para comprimentos axiais superiores a 26mm, o erro absoluto médio foi menor na fórmula SRK-T. Diferiu com significado estatístico da Holladayl (p=0,032), mas não da HofferQ (p=0,156). Houve correlação entre erro absoluto médio e comprimento axial em com- primentos axiais superiores a 26mm, para as fórmulas SRK-T (R=0,438, p=0,016), HofferQ (R=0,447, p=0,013) e Holladayl (R=0,386, p=0,035). Conclusão: A HofferQ tem o melhor desempenho nos comprimentos axiais menores que 22mm e a SRK-T nos superiores a 26mm. A comprimentos axiais sucessivamente mais extremos corresponde um aumento estatisticamente significativo do erro absoluto médio nos comprimentos axiais superiores a 26mm, mas não nos inferiores a 22mm.
- Correcção de ectrópio cicatricialPublication . Coutinho, I; Ramalho, M; Pedrosa, C; Mota, M; Lopes, AS; Silva, D; Pêgo, P; Cabral, JIntrodução: O ectrópio cicatricial resulta da diminuição vertical e/ou cicatrização da pele e tecidos subjacentes da lamela anterior da pálpebra, levando ao afastamento da margem palpebral da sua posição anatómica. As principais complicações são a queratite de exposição, a epífora e a componente estética. Materiais e Métodos: Criança de 14 anos, com história de ferida penetrante da pálpebra inferior olho direito, resultado em ectrópio cicatricial (Fig1), que além da questão estética condicionava queratite inferior. A técnica cirúrgica utilizada na correcção do ectrópio cicatricial localizado, Z plastia múltipla, será descrita pelos autores (Fig.2). Resultados Obteve-se um bom resultado funcional e estético (Fig.3). Conclusões A Z-plastia pode ser uma opção no tratamento de ectrópio cicatricial localizado, permitindo aliviar a retracção dos tecidos e conduzindo a bons resultados estéticos e funcionais.
- Digital Asthenopia: Portuguese Group of Ergophthalmology Survey.Publication . Vaz, F; Henriques, S; Silva, D; Roque, J; Lopes, AS; Mota, MINTRODUCTION: Given the increasing use of electronic devices, and the increasing number of complaints with its use, we intend to evaluate the prevalence of manifestations of dry eye and ocular fatigue in a population of individuals, who use the computer daily to perform all their professional tasks, as well as to correlate these complaints with the number of hours of digital use as well as their possible improvement with behavioural measures and use of tear drops. MATERIAL AND METHODS: A total of 77 individuals (154 eyes) were evaluated on two separate days with a 1-month interval. They completed two questionnaires: OSDI and PEG Eye Fatigue. An objective ocular surface assessment was performed: Schirmer test without anesthetic, DR-1a Dry Eye Monitor™, hyperemia evaluation, lacrimal break up, presence of keratitis and lesions in the conjunctiva, as well as near accommodation point and near convergence point. After the first evaluation, the subjects were divided into two groups: group A (< 2 hours of computer working) and group B (> 2 hours of computer working). Some environmental measures to reduce complaints and recommendation of use of artificial tears were explained to the latter. RESULTS: There was a statistically significant difference in the majority of the parameters evaluated in the group B, in relation to the morning period (group A) - tear film (p = 0.032), hyperemia (p < 0.001), BUT (p < 0.001), keratitis (p < 0.001), conjunctival lesion (p = 0.002) and accommodation point (p < 0.001). In the evaluation - one month later - there were no statistically significant differences in any of the parameters analysed in the group A, and in group B there was a decrease in most parameters at the end of that period - Schirmer test (p = 0.005), lacrimal film (p = 0.022), keratitis (p < 0.001), conjunctival lesion (p = 0.005) and fatigue score (p < 0.001). DISCUSSION: It was thus possible to show the appearance of ocular fatigue and ocular surface changes with prolonged use of computers (> 2 hours) as well as a significant improvement in symptomatology (subjective assessment) as well as of ocular surface changes (objective evaluation) with the implementation of postural measures, regular breaks and use of lubricants. This is the first study, to the best of our knowledge, of digital asthenopia in which, in addition to the subjective evaluation, the presence of ocular surface modifications (objective assessment) were evaluated and the respective improvement with the aforementioned ergophthalmological measures were evaluated. CONCLUSION: This survey highlights the increased overall level of awareness that we need to have to face the rapid and wide-scale changes driven by the emergence of digital technology and, more particularly, its impact on user's vision and posture. We concluded that the longer we use the electronic devices (more than two hours) the more severe the complaints and rates of ocular surface changes are. Environmental and ocular strategies can attenuate or even eliminate the discomfort caused by this syndrome, and increase professional performance and quality of life.
- Doença de Behçet: a nossa realidadePublication . Coutinho, I; Pedrosa, C; Mota, M; Silva, D; Pina, S; Ferreira, I; Grima, B; Lisboa, M; Bernardo, MIntrodução: A doença de Behçet é uma vasculite inflamatória sistémica, de etiologia desconhecida, caraterizada por episódios de recidiva de úlceras orais e genitais, lesões oculares e cutâneas, podendo atingir virtualmente todos os sistemas. As manifestações oculares são comuns e com consequências visuais importantes. O objectivo deste trabalho foi analisar os parâmetros demográficos, manifestações clinicas, terapêutica e principais complicações em doentes com doença de Behçet ocular. Métodos: Estudo descritivo e retrospetivo, que incluiu 11 doentes com o diagnóstico de doença de Behçet, segundo os critérios do ISG, observados na consulta de Inflamação Ocular do Hospital Prof. Doutor Fernando da Fonseca nos últimos 3 anos. Resultados: Identificaram-se 11 doentes, 5 homens e 6 mulheres, todos caucasianos. A idade média ao diagnóstico foi de 33,45±6,49 anos. A manifestação ocular foi o primeiro sinal da doença em 2 doentes. Em 72,7% dos casos as manifestações oculares foram bilaterais. Identificaram-se 4 casos de panuveíte, 3 de uveíte posterior, 2 de uveíte anterior, 1 de queratite e 1 caso de episclerite. O glaucoma e a catarata foram a complicação ocular mais frequente. O tratamento sistémico incluiu a corticoterapia oral em associação com terapêutica adjuvante imunossupressora, sendo os mais utilizados a azatioprina e a ciclosporina. Em 3 doentes houve necessidade de terapêutica biológica com infliximab para controlo da doença. Conclusão: A manifestação ocular mais frequente foi a panuveite. Esta doença pode condicionar complicações oculares com diminuição irreversível da acuidade visual. A orientação destes doentes exige uma abordagem global e inter-disciplinar.
- Drepanocitose em idade pediátrica: avaliação por imagem multimodalPublication . Mota, M; Silva, D; Teixeira, S; Pires, G; Silva, F; Ramalho, M; Coutinho, I; Almeida, A; Pires, G; Dias, A; Prieto, I