RESUMO
Amvisc, a purified fraction of sodium hyaluronate, was evaluated and compared with Healon in cataract extraction and primary intraocular lens implantation. Both visco-elastic solutions are valuable adjuncts to intraocular surgery. A number of patients had moderately elevated IOP after these solutions had been used in the anterior chamber. This moderate elevation was observed less frequently with Amvisc than with Healon, and may be attributed to the lower viscosity of Amvisc. Both visco-elastic solutions provide good endothelial protection as evidenced by the minimal corneal edema seen in both groups. Postoperative anterior chamber inflammation was minimal in all patients in this study.
Assuntos
Extração de Catarata/métodos , Ácido Hialurônico/uso terapêutico , Pressão Intraocular/efeitos dos fármacos , Idoso , Doenças da Córnea/complicações , Edema/complicações , Feminino , Humanos , Ácido Hialurônico/farmacologia , Masculino , Complicações Pós-OperatóriasRESUMO
A Cary, Model 118, spectrophotometer was used to measure spectral absorbence by the human lens capsule of wavelengths 200 nm to 400 nm. The lens capsule transmits greater than 90% of the incident UV light, and thus does not appear to provide significant protection for the retina from UV radiation. This suggests that the lower incidence of aphakic cystoid macula edema in the eye with an intact posterior capsule is not related to UV light absorption by the lens capsule.