Update on bimanual microincisional cataract surgery

Vasavada, Abhay R.; Nihalani, Bharti R.

doi:10.1097/01.icu.0000193069.32369.e1

Cited by 139 publications

(71 citation statements)

References 71 publications

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“…2,3,5 Conversely, pseudoaccommodation, relies on optical factors, such as astigmatism, higher-order aberrations (HOAs), and pupil constriction, that increase the ocular depth of focus, resulting in improved uncorrected near vision independent of lens movement. 6,7 This can be achieved with refractive or diffractive multifocal IOL Q 2012 ASCRS and ESCRS 0886-3350/$ -see front matter…”

Section: Discussionmentioning

confidence: 99%

Impact of corneal aberrations on through-focus image quality of presbyopia-correcting intraocular lenses using an adaptive optics bench system

Zheleznyak

Kim

MacRae

et al. 2012

Journal of Cataract and Refractive Surgery

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The uncorrected corneal astigmatism and HOAs in pseudophakic eyes significantly affected through-focus performance of presbyopia-correcting IOLs. Although multifocal IOLs significantly increased depth of focus, this benefit diminished when more than 0.75 D astigmatism remained uncorrected. Residual ocular spherical aberration had a significant effect on image quality in the presence of other corneal HOAs.

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Section: Discussionmentioning

confidence: 99%

Impact of corneal aberrations on through-focus image quality of presbyopia-correcting intraocular lenses using an adaptive optics bench system

Zheleznyak

Kim

MacRae

et al. 2012

Journal of Cataract and Refractive Surgery

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“…By the age of 50 years, ciliary muscle contraction is no longer able to change the shape of the lens. This is the limiting factor for accommodation and the main basis of presbyopia [48].…”

Section: Age-related Changes Leading To Cataractmentioning

confidence: 99%

The ageing lens and cataract: a model of normal and pathological ageing

Michael

Bron

2011

Phil. Trans. R. Soc. B

394

288

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Cataract is a visible opacity in the lens substance, which, when located on the visual axis, leads to visual loss. Age-related cataract is a cause of blindness on a global scale involving genetic and environmental influences. With ageing, lens proteins undergo non-enzymatic, post-translational modification and the accumulation of fluorescent chromophores, increasing susceptibility to oxidation and cross-linking and increased light-scatter. Because the human lens grows throughout life, the lens core is exposed for a longer period to such influences and the risk of oxidative damage increases in the fourth decade when a barrier to the transport of glutathione forms around the lens nucleus. Consequently, as the lens ages, its transparency falls and the nucleus becomes more rigid, resisting the change in shape necessary for accommodation. This is the basis of presbyopia. In some individuals, the steady accumulation of chromophores and complex, insoluble crystallin aggregates in the lens nucleus leads to the formation of a brown nuclear cataract. The process is homogeneous and the affected lens fibres retain their gross morphology. Cortical opacities are due to changes in membrane permeability and enzyme function and shear-stress damage to lens fibres with continued accommodative effort. Unlike nuclear cataract, progression is intermittent, stepwise and non-uniform.

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“…С тех пор как было установлено, что цилиарная мышца увели-чивается в размере при аккомодационном усилии [4] и возрастает давление со стороны стекловид-ного тела [5], появились основания для создания так называемых аккомодирующих ИОЛ. Но через 1,5-2 года после имплантации таких линз пациен-ты утрачивают четкое видение вблизи, при этом исследователи отмечают трудности в объективном доказательстве значимого смещения оптической части линзы [6,7]. В связи с этим мы проанализи-ровали собственные данные наблюдений за состоя-нием зрительных функций пациентов, перенесших имплантацию новой модели ИОЛ Lentis Mplus.…”

Section: лоскутов игорьunclassified

Visual Outcomes of Implantation of Multifocal Intraocular Lens With Asymmetrical Light Distribution

Митяева¹,

Лоскутов²

2016

Alʹm. klin. med.

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Визуальные исходы имплантаций мультифокальной линзы с асимметричной оптикой Митяева Е.Н. • Лоскутов И.А.Актуальность. Исследование результатов им-плантации интраокулярной линзы (ИОЛ) с реф-ракционным дизайном оптики, особенно с сек-торальным расположением зон рефракции, представляет интерес, так как линзы лишены недостатков более распространенных мульти-фокальных ИОЛ с дифракционным дизайном.Цель -оценка состояния зрительных функций пациентов, перенесших имплантацию новой модели Lentis Mplus.Материал и методы. 78 пациентам (100 глаз) старше 50 лет имплантировали 100 ИОЛ Lentis Mplus. Пациентам проводилось дооперационное обследование с определени-ем остроты зрения для дали и для близи с кор-рекцией и без. В послеоперационном периоде при исследовании зрительных функций опре-деляли корригированную и некорригирован-ную остроту зрения вдаль и вблизи (расстояние 33 см), а также исследовали зрение на среднем расстоянии с помощью чтения таблицы для близи (60 см).

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Update on bimanual microincisional cataract surgery

Cited by 139 publications

References 71 publications

Impact of corneal aberrations on through-focus image quality of presbyopia-correcting intraocular lenses using an adaptive optics bench system

Impact of corneal aberrations on through-focus image quality of presbyopia-correcting intraocular lenses using an adaptive optics bench system

The ageing lens and cataract: a model of normal and pathological ageing

Visual Outcomes of Implantation of Multifocal Intraocular Lens With Asymmetrical Light Distribution

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