Presbyopiekorrektur mittels Linsensystemen

Surgical correction of presbyopia can be performed by refractive lens exchange, replacing the lens with a monofocal, a multifocal or an extended-depth-of-focus (EDOF) intraocular lens (IOL). Option 1, a monofocal IOL, must be combined with monovision, otherwise presbyopia cannot be corrected. Monovision in this context means one eye for distance and one eye targeted for - 1.5 D. With this concept glasses are still required for near (30 - 40 cm) and for driving, but intermediate distances and everyday life is usually possible without glasses. Option 2, a multifocal IOL, results in spectacle independence. Current multifocal IOL typically use three foci and are therefore called trifocal IOL. Distance vision and near vision are typically good, intermediate vision still acceptable but lower than distance and near, resulting in occasional problems while working on a computer. Option 3, EDOF-IOL, provide good distance and intermediate vision without glasses but near vision typically requires reading glasses.