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English to Danish translations [PRO] Medical - Medical: Instruments / microbiology
English term or phrase:dysphotopsia
In competitor IOLs (Intraocular Lenses), the conventional Square Edge can contribute to dysphotopsia. In XXXX IOLs, ray-tracing studies show no general increase in glare as a result of Enhanced Square Edge Technology. This is attributable to the low refractive index of XXXX (1.46). The value is sufficiently high to allow a suitable lens thickness with square edge but not so high as to create internal reflection that leads to dysphotopsia. There is a greater risk of glare with the hydrophobic acrylic biomaterials than with hydrophilic acrylic biomaterials because of the higher refractive indices of hydrophobic biomaterials. The problem of glare is frequently compounded by the optical impurity of some hydrophobic biomaterials which may contain vacuoles and glistenings.