Clinical results of the multifocal lens

Keates, Richard H.; Pearce, John L.; Schneider, R. T.

doi:10.1016/s0886-3350(87)80114-1

Cited by 114 publications

(39 citation statements)

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“…1,[3][4][5][6][7][8][9][10][11][12][13][14][15] Several studies have shown that these IOLs allow good functional vision without the use of corrective lenses, but they are also known to cause decreased contrast sensitivity, glare disability, and halos. 8,14,16,17 This loss of image quality can affect visual performance, and a significant number of patients, such as professional drivers, are not good candidates for implantation.…”

Section: Discussionmentioning

confidence: 99%

Visual outcomes after accommodating intraocular lens implantation

Macsai

Padnick‐Silver²,

Fontes³

2006

Journal of Cataract and Refractive Surgery

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Section: Discussionmentioning

confidence: 99%

Visual outcomes after accommodating intraocular lens implantation

Macsai

Padnick‐Silver²,

Fontes³

2006

Journal of Cataract and Refractive Surgery

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“…[1][2][3][4][5][6] The use of multifocal IOLs offers a significant opportunity to improve distance and near vision. However, these improved IOL designs are insufficient if the lens does not suit the lifestyle of patients recovering their vision at all distances, including intermediate distance.…”

mentioning

confidence: 99%

Visual Outcomes of a Trifocal Aspheric Diffractive Intraocular Lens With Microincision Cataract Surgery

Alió¹,

Montalbán²,

Peña-García³

et al. 2013

J Refract Surg

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he implantation of a multifocal intraocular lens (IOL) after the extraction of cataract has been reported as an alternative to improve the near vision performance and the quality of life of some patients. [1][2][3][4][5][6] The use of multifocal IOLs offers a significant opportunity to improve distance and near vision. However, these improved IOL designs are insufficient if the lens does not suit the lifestyle of patients recovering their vision at all distances, including intermediate distance.4-8 Many IOL technologies are commercially available for implantation after cataract surgery and several studies have reported that diffractive multifocal IOLs with an aspheric profile perform better than refractive multifocal or accommodating IOLs in terms of near visual acuity. On the other hand, aspheric profiles give better optical quality in comparison to spherical profiles. [8][9][10][11][12][13] Recently, a new multifocal model IOL has been introduced in clinical practice combining two diffractive apodized profiles that can provide three foci for distance, near, and intermediate vision.14 There are few publications describing the outcomes after the implantation of a trifocal intraocular lens and some of these have limited samples. [15][16][17] Additionally, this new IOL offers the possibility to be implanted through a sub-2-mm incision, accomplishing the advantages of microincisional cataract surgery (MICS).The aim of the current study was to evaluate the visual and the intraocular performance of this new trifocal IOL in eyes implanted following cataract surgery performed through MICS. PATIENTS AND METHODS PatientsIn this prospective, consecutive, non-comparative interventional study, we included 40 eyes of 20 patients with T ABSTRACT PURPOSE: To evaluate the visual outcomes of patients with a new diffractive trifocal intraocular lens (IOL). METHODS:A trifocal diffractive Fine Vision IOL (Physiol, Liege, Belgium) was implanted after microincision cataract surgery (MICS) in 40 eyes of 20 patients with bilateral cataract. The monocular and binocular visual performance and the refractive status were assessed, as well as the defocus curve and contrast sensitivity at 1 and 6 months postoperatively. RESULTS:The monocular visual outcomes (logMAR) at 6 months postoperatively were uncorrected distance visual acuity 0.18 ± 0.13, uncorrected near visual acuity 0.26 ± 0.15, and uncorrected intermediate visual acuity 0.20 ± 0.11. With the best distance correction, the visual outcomes were 0.05 ± 0.06 for corrected distance visual acuity, 0.16 ± 0.13 for distance corrected near visual acuity, and 0.17 ± 0.09 for distance corrected intermediate visual acuity. Binocular defocus curve at 6 months shows a wide range of useful vision with 0.19 ± 0.08 (logMAR) at -1.50 diopter defocus. The monocular contrast sensitivity under scotopic conditions (3 cd/m 2 ) was within normal range for a population older than 60 years. CONCLUSION:The trifocal Fine Vision IOL can restore vision at different distances after cataract surgery, specifically...

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“…The image from the second lens power is highly defocused and very faint, and it has been confirmed clinically, with several different designs, that the patient primarily perceives only the focused image. [1][2][3][4][5][6] However, some patients may experience unwanted visual images such as glare, flare, streaks, and halos. 7,8 Intermediate vision is provided by contributions from the defocus characteristics of both primary lens powers, with some lens designs attempting to direct additional light to an intermediate focus location (Figure 1).…”

mentioning

confidence: 99%

“…1,14,15 Each lens zone has a different effective aperture, and this can affect the quality of the image that it provides because the pupil diameter changes in response to different illumination levels as well as with the accommodative reflex. The energy balance between the 2 images and the quality of the images vary with engineering design and environmental conditions.…”

mentioning

confidence: 99%