3M diffractive multifocal intraocular lens: Eight year follow-up

Abstract

This long-term study proved the 3M diffractive IOL to be safe and effective despite some reduction in contrast sensitivity at higher spatial frequencies. More than half the patients never wore spectacles; 2 of 3 patients with IOLs in both eyes never wore spectacles. Proper patient selection is crucial.

Patient satisfaction after implantation of diffractive designed multifocal intraocular lenses in dependence on objective parameters

“…A monocular UCVA of 20/25 or better was found in 75.4% of the patients. Our results concerning UCVA and BCVA were in the same range as the monocular results of other studies with diffractive designed IOLs [1,6,10,11,12,14] (see also Table 2). In contrast to refractive designed multifocal IOLs, where uncorrected near visual acuity has been found to be the most important factor for patient satisfaction [3,13], with diffractive designed multifocal IOLs this factor did not play a role in patient satisfaction due to the overall excellent reading results, but uncorrected distance visual acuity was identified as the most important factor.…”

“…In a nonselective study by Kamath et al [4], 28.4% of the eyes achieved a UCVA of 20/40 or better and 71.6% had a BCVA of 20/40 or better, whereas in the present study 96.9% of the eyes had a UCVA of 20/40 or better and all patients achieved a BCVA of at least 20/25 monocularly. The role of patient preselection was also confirmed in a study by Slagsfold [10], in which 98.7% of patients without ocular pathology had a BCVA of 1.0 or better. In general, due to the contrast loss with multifocal designed IOLs, we would not recommend implanting a multifocal IOL when ocular pathologies other than cataract are present.…”

“…In several previous studies good functional results have been found after implantation of diffractive designed multifocal intraocular lenses (IOLs) [1,2,5,10,12,14]. In general, multifocal designed IOLs should provide the patient with a greater depth of focus and less dependence on spectacles, thereby improving overall satisfaction compared to monofocal IOLs.…”

Dual intraocular lens implantation: Monofocal lens in the bag and additional diffractive multifocal lens in the sulcus

“…12,20,21 Posterior capsule opacification is the most common complication of modern cataract surgery, with an incidence of up to 50% at 2 years. 23 In our study, the PCO with Nd:YAG rate was relatively high compared with that after monofocal IOL implantation. However, reports of the PCO and Nd:YAG rates in eyes with multifocal IOLs are conflicting.…”

Development of a questionnaire to assess the relative subjective benefits of presbyopia correction

“…1 The concept of measuring quality of life is becoming increasingly important in the field of presbyopia correction because technological advances are beginning to allow the restoration of near visual function without the aid of nearfocused spectacles or magnifying devices. Such techniques include accommodating [2][3][4] and multifocal [5][6][7] intraocular lenses (IOLs) and multifocal contact lenses. 8 Current evaluations of presbyopic vision correction techniques concentrate largely on measures of visual acuity, the range of clear focus, and objective accommodation.…”