Navegando por Palavras-chave "Accommodation, ocular"

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    Adaptação de lente de contato gelatinosa especial para ceratocone
    (Conselho Brasileiro de Oftalmologia, 2006-08-01) Yamazaki, Ester Sakae [UNIFESP]; Silva, Vanessa Cristina Batista Da [UNIFESP]; Morimitsu, Vagner [UNIFESP]; Andrade Sobrinho, Marcelo Vicente de [UNIFESP]; Fukushima, Nelson [UNIFESP]; Lipener, César [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    PURPOSE: To evaluate the fitting and use of a soft contact lens in keratoconic patients. METHODS: Retrospective study on 80 eyes of 66 patients, fitted with a special soft contact lens for keratoconus, at the Contact Lens Section of UNIFESP and private clinics. Keratoconus was classified according to degrees of disease severity by keratometric pattern. Age, gender, diagnosis, keratometry, visual acuity, spherical equivalent (SE), base curve and clinical indication were recorded. RESULTS: Of 66 patients (80 eyes) with keratoconus the mean age was 29 years, 51.5% were men and 48.5% women. According to the groups: 15.0% were incipient, 53.7% moderate, 26.3% advanced and 5.0% were severe. The majority of the eyes of patients using contact lenses (91.25%) achieved visual acuity better than 20/40. To 88 eyes 58% were tihed with lens with spherical power (mean -5.45 diopters) and 41% with spherocylinder power (from -0.5 to -5.00 cylindrical diopters). The most frequent base curve was 7.6 in 61% of the eyes. The main reasons for this special lens fitting were due to reduced tolerance and poor fitting pattern achieved with other lenses. CONCLUSION: The special soft contact lens is useful in fitting difficult keratoconic patients by offering comfort and improving visual rehabilitation that may allow more patients to postpone the need for corneal transplant.
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    Comparação da função visual e do índice de qualidade de vida com uso de óculos ou de lente de contato progressiva
    (Conselho Brasileiro de Oftalmologia, 2006-06-01) Sant'anna, Neusa Vidal [UNIFESP]; Schor, Paulo [UNIFESP]; Lipener, César [UNIFESP]; Uras, Ricardo [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    PURPOSE: To compare the visual function and the answers to a questionnaire of quality of life of patients wearing a progressive contact lens or eyeglasses. METHODS: The Focus Progressive® contact lens had been fitted in 35 patients with far visual acuity with progressive-addition eyeglasses equal to zero (log MAR) and near J1 (Jaeger). The far and near visual acuities and the measurement of contrast sensitivity were compared when the patients were wearing the eyeglasses or the contact lens and the patients' results of the scores of the quality of life questionnaire (NEI VFQ-25) were analyzed statistically considering the type of ametropy and the age. RESULTS: The far and near visual acuities and the contrast sensitivity measurement were worse with the contact lens than with eyeglasses. The answers to the questionnaire did not differ when were comparing the same patients wearing eyeglasses or contact lens, no matter the type of ametropy. The myopic and the hyperopic subgroups had worse answers to the quality of life questionnaire when corrected with the contact lens than with eyeglasses, both with age equal to or less than their median. CONCLUSIONS: The visual function was worse with the contact lens. The type of ametropy did not influence the answers to the quality of life questionnaire considering the optical correction, but age did.
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    Técnicas cirúrgicas para correção da presbiopia em pacientes fácicos
    (Conselho Brasileiro de Oftalmologia, 2004-06-01) Ferraz, Caroline Amaral [UNIFESP]; Allemann, Norma [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    Presbyopia is characterized as a progressive age-related loss of accommodative amplitude. In recent years, attempts have been made to surgically reverse presbyopia. This article discusses different procedures proposed for treatment of presbyopia in phakic patients.