Avaliação da sensibilidade ao contraste e da estereopsia em pacientes com lente intra-ocular multifocal

• Autor(a) principal: Oliveira, Filipe de [UNIFESP]
• Data de Publicação: 2005
• Outros Autores: Muccioli, Cristina [UNIFESP], Silva, Luci Meire Pereira da [UNIFESP], Soriano, Eduardo Sone [UNIFESP], Souza, Carlos Eduardo Borges [UNIFESP], Belfort, Rubens Junior [UNIFESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNIFESP
• Texto Completo: http://dx.doi.org/10.1590/S0004-27492005000400005; http://repositorio.unifesp.br/handle/11600/2632
• topic: Contrast Sensitivity; Depth Perception; Pseudophakia; Lens Implantation, Intraocular; Lenses, Intraocular; Cataract; Sensibilidades de contraste; Percepção de profundidade; Pseudofacia; Implante de lente intra-ocular; Lentes intra-oculares; Catarata

PURPOSE: To evaluate the contrast sensitivity and stereopsis tests in patients who underwent bilateral implantation of multifocal intraocular lens. METHODS: Tests of contrast sensitivity using the Pelli-Robson chart and stereopsis evaluation with the Titmus Stereo Test were performed in 20 patients 30-60 days after the bilateral implantation of Acrysof Restor® multifocal intraocular lens. RESULTS: The binocular contrast sensitivity test demonstrated that 6 patients (30%) presented 1.80 log units, 13 (65%) 1.65 and in only 1 (5%) the sensitivity was 1.50 log units. By the other hand, the monocular test in right eye showed 17 patients (85%) with 1.65 log units and 3 (15%) with 1.50. In the left eye, the test presented 16 patients (80%) with 1.65 log units and 4 (20%) with 1.50 log units. The average and the standard deviation of the contrast sensitivity were 1.63 (±0.05) for right eye, 1.62 (±0.06) for left eye and 1.69 (±0.08) for binocular test. Stereopsis test disclosed 12 patients (60%) presenting 40, 6 (30%) 50 and only 2 (10%) 60 (average: 45 and standard deviation: 6.88). CONCLUSIONS:The Acrysof Restor® intraocular lens provided results of contrast sensitivity and stereopsis in accordance with the criteria of normality established previously in other studies for phakic and pseudophakic patients. Therefore, this intraocular lens does not decrease visual functionality.