V 570
Prospective investigation of patient satisfaction after implantation of diffractive designed multifocal intraocular lenses in dependence of objective parameters
T. Walkow, U. M. Klemen
Background: To determine prospectively .patient satisfaction after implantation of diffractive designed multifocal IOLs in dependence of objective parameters.
Patients and methods: Sixty-nine eyes without additional ocular pathologies of 50 patients (mean age 65.0 years) got a diffractive designed multifocal IOL. Uncorrected and best-corrected monocular and binocular distance and near visual acuity, pre- and postoperative astigmatism, postoperative spherical equivalent, low contrast and glare visual acuity (Humphrey autorefractor 570), contrast visual acuity (Pelli Robson charts) and depth of focus were recorded 12 month postoperatively. Additional a subjective questionnaire concerning optical phenomenas (halos, glare), use of glasses and overall satisfaction was performed.
Results: Mean postoperative UCVA was 0.85 monocularly and 0.98 binocularly (LogMAR). Mean near visual acuity was Nieden 1.03 monocularly and 1.0 binocularly. Postoperative mean spherical equivalent was 0.17± 0.43 D and absolute mean astigmatism was 0.64 D. On a subjective scale from 0 (none) to 4 (very disturbing) a mean halo score of 0.45 and a mean glare score of 0.38 resulted. The use of glasses was highly correlated with postoperative spherical equivalent and absolute postoperative astigmatism. Mean personal overall satisfaction was 0.51 (0=excellent up to 4=not satisfying). Overall satisfaction was significantly influenced by UCVA, age, contrast sensitivity, postoperative astigmatism and postoperative spherical equivalent (P<0.05).
Conclusions: Concerning diffractive designed multifocal intraocular lenses emmetropia and a low astigmatism should be achieved postoperatively. Optical phenomenas like halos and glare were significantly more frequent in younger patients, but did not influence overall satisfaction significantly.
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