Multifocal Intraocular Lens Explantation: A Case Series of 50 Eyes

Objective and subjective visual quality after implantation of all optic zone diffractive multifocal intraocular lenses: a prospective, case-control observational study

“…Previous studies6 41 have reported larger differences between the multifocal and the monofocal groups regarding near task; however we report no statistically significant difference between the two groups or the results of previous studies. This may be due to the design of the questionnaire.…”

“…However, there are diverse results about their visual quality. Some reported that they have lower visual quality due to dividing light into far and near parts,3 4 especially low contrast VA and photic phenomenon,3 5 6 some studies showed that multifocal IOLs had similar contrast sensitivity as normal age-matched limits7 and some had similar contrast VA and glare when compared with monofocal IOLs 8 9. Most of the studies used subjective visual quality for analysis1–5 8–10 (ie, VA, contrast sensitivity, spectacle dependence, visual satisfaction, glares, etc).…”

A More Natural Way of Seeing: Visual Performance of Three Presbyopia Correcting Intraocular Lenses

“…In another study with the same lens model, the most common visual symptom was halos, which were reported by 60% of the patients, followed by glare in 28% and starburst in 8% of the patients [24]. In a retrospective study, Kamiya et al [26] found that disabling photic phenomena were one of the main causes for multifocal IOL explantation. The optic lens design of the Symfony IOL with the elongated focus instead of distinct focal points might have contributed to the low level of photic phenomena.…”

Clinical Outcomes Following Implantation of Diffractive Multifocal Intraocular Lenses With Varying Add Powers

“…One study evaluated 50 cases of multifocal IOL explantation and reported that best-corrected visual acuity was 20/20 or better in approximately 70% of eyes at the time of explant. 27 The 2 most common reasons for explantation were decreased contrast sensitivity (36% of patients) and photic phenomenon (34% of patients). 27 Because photic phenomenon cause a large proportion of patients to be dissatisfied after multifocal IOL implantation, we attribute the significantly higher satisfaction of patients with þ2.75 D (ZKB00) and þ3.25 D (ZLB00) add IOLs largely to the lower postoperative incidences of glare and halos.…”

“…27 The 2 most common reasons for explantation were decreased contrast sensitivity (36% of patients) and photic phenomenon (34% of patients). 27 Because photic phenomenon cause a large proportion of patients to be dissatisfied after multifocal IOL implantation, we attribute the significantly higher satisfaction of patients with þ2.75 D (ZKB00) and þ3.25 D (ZLB00) add IOLs largely to the lower postoperative incidences of glare and halos. The better contrast sensitivity and lower chance of needing corrective lenses (for near or distance vision) following surgery may have also contributed to better overall satisfaction.…”