Add-on #multifocal lenses for patients who have had monofocal lenses at the time of #cataract surgery

Patients who have had previous cataract surgery with monofocal lens implants may want independence from glasses for near and distance vision. A recent study shows that an add-on multifocal lens implant can restore near vision in a similar manner to a multifocal lens implanted in the first instance at the time of cataract surgery in these patients. This allows patients to 'upgrade' the function of their lenses at a later date if they wish to do so. Importantly the procedure is reversible in the event that the person does not adapt to vision with a multifocal lens.

J Cataract Refract Surg. 2015 Oct;41(10):2107-14. doi: 10.1016/j.jcrs.2015.10.055.

Visual function and reading speed after bilateral implantation of 2 types of diffractive multifocal intraocular lenses: Add-on versus capsular bag design.

Liekfeld A1Ehmer A2Schröter U2.

Author information

Abstract

PURPOSE:

To compare the functional outcomes of primary implantation of a monofocal intraocular lens (IOL) in the capsular bag and an add-on multifocal IOL in the sulcus with the functional results of a conventional multifocal posterior chamber IOL and to evaluate the multifocal add-on IOL as an effective alternative to a conventional multifocal IOL.

SETTING:

Ernst von Bergmann Eye Clinic, Potsdam, Germany.

DESIGN:

Prospective nonrandomized case series.

METHODS:

Cataract surgery patients were assigned to have bilateral implantation of a monofocal IOL (Aspira-aAY) in the capsular bag followed by a multifocal add-on IOL (Diff-sPB) in the sulcus (Group A) or with a conventional multifocal IOL (Diffractiva-s) in the capsular bag (Group B). The main study outcomes were assessed at the last follow-up visit (6 months postoperatively) and included refraction, intraocular pressure, visual acuity, reading speed, contrast sensitivity, defocus curve, and patient satisfaction.

RESULTS:

The study comprised 26 patients (52 eyes) Cataract surgery was uneventful in all cases. No severe complications were observed 6 months postoperatively. Visual performance with a multifocal diffractive add-on IOL was equivalent to that achieved with a conventional multifocal diffractive posterior chamber IOL. Similarly, there were no significant differences in patient satisfaction and reading speed for any type of letter size between groups (P > .05).

CONCLUSION:

Implanting a multifocal add-on IOL in the sulcus in addition to a monofocal IOL in the capsular bag produced outcomes similar to those of single implantation of a standard multifocal IOL in the capsular bag.

Posted on March 28, 2016 .