Extended depth of focus IOLs, including the brand Tecnis Symfony, give sharp vision over a wider range, allowing patients to see objects clearly at different distances. These have less glare and a smaller halo effect than multifocal lenses. They are suitable for people who want excellent medium-range vision, such as those who work at computers for long periods. But they come at a premium - about £4,000-plus per eye.
Izinga lokujula kwefokhasi ye-IOL, kuhlanganisa ibrendi i-Tecnis Symfony, kunikeza ukubona okucacile kwezinhlobo ezibanzi, okwenza iziguli zibone into ngokucacile emazingeni angafani obude. Lawa anokukhanya okuncane nezinga eliphansi le-halo kunamalensi e-multifocal. Alungele abantu abafuna ukukhanya okusezingeni elihle kakhulu elilinganiselwe, njengalabo abasebenza kumakhompyutha isikhathi eside. Kodwa eza nentengo – cishe-£4,000-nangaphezulu iso ngalinye.