Commentary: Presbyopia correction with intraocular lenses

Purpose. To compare the through-focus visual performance in a clinical population of pseudophakic patients implanted with two new trifocal intraocular lenses (IOLs) and one extended depth of focus IOL. Methods. Prospective, nonrandomized, examiner-masked case series. Twenty-three patients received the FineVision® and seven patients received the PanOptix™ trifocal IOLs. Fifteen patients received the Symfony extended depth of focus IOL. Mean age of patients was 63 ± 8 years. Through-focus visual acuity was measured from –3.00 to +1.00 D vergences. Contrast sensitivity was measured with and without a source of glare. Light disturbances were evaluated with the Light Distortion Analyzer. Results. Though-focus evaluation showed that trifocal IOLs performed significantly better at near distance (33 and 40 cm), and extended depth of focus performed significantly better at intermediate distance (1.0 m). Contrast sensitivity function with glare and dysphotopsia was similar between the three IOLs and subjective response to questionnaire showed a significantly higher score (worse performance) for the extended depth of focus IOL compared to both trifocal IOLs in the bothersome subscale (p<0.05). Conclusions. Trifocal IOLs grant better performance at near distance while extended depth of focus IOL performs better at intermediate distance. Objective dysphotopsia measured with the Light Distortion Analyzer is not reduced in extended depth of focus IOL compared to trifocal IOLs.

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Multifocal Intraocular Lenses Implantation in Presbyopia Correction. Literature Review

Acta biomedica scientifica ◽

10.29413/abs.2019-4.4.6 ◽

2019 ◽

Vol 4 (4) ◽

pp. 41-55

Author(s):

K. B. Pershin ◽

N. F. Pashinova ◽

M. M. Konovalova ◽

A. Yu. Tsygankov ◽

M. E. Konovalov

Keyword(s):

Intraocular Lenses ◽

Ophthalmic Surgery ◽

Active Lifestyle ◽

Blurred Vision ◽

Multifocal Intraocular Lenses ◽

Active Life ◽

Level Of Satisfaction ◽

Implantation Techniques ◽

Presbyopia Correction

Reduced dependence on glasses is an increasingly common expectation among those who want to take advantage of new surgical opportunities, especially for patients who lead an active lifestyle. Currently, due to the increase in the duration of active life in people over 40, there is a need for effective correction of presbyopia. Multifocal intraocular lenses are increasingly used in the treatment of presbyopia. After implantation of multifocal intraocular lenses most patients have no need for spectacle or contact vision. However, complications can affect the patient’s quality of life and level of satisfaction. The most common complications of multifocal correction are blurred vision and the presence of optical phenomena (“halo” and “glare”), associated with residual ametropia, clouding of the posterior capsule, large pupil size, anomalies of the wave front, dry eye and lens decentration. The main reasons for this are the failure to attempt to neuroadapt a patient, the dislocation of the lens, the residual refractive error and the clouding of the lens. The review presents the main features of various models of multifocal intraocular lenses, their implantation techniques, associated complications and methods for their correction. The development of multifocal correction of presbyopia and ametropia seems to be a promising direction in ophthalmic surgery.

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Postoperative presbyopia correction with intraocular lenses implantation in cataract patients – current trends

OphthaTherapy Therapies in Ophthalmology ◽

10.24292/01.ot.301216.05 ◽

2016 ◽

Vol 3 (4) ◽

pp. 270-278

Author(s):

Mariusz Spyra ◽

Ewelina Cisek ◽

Agnieszka Cisek ◽

Stanisław Orkisz ◽

Paweł Klonowski ◽

...

Keyword(s):

Intraocular Lenses ◽

Current Trends ◽

Presbyopia Correction ◽

Cataract Patients

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Bifocal and Multifocal Contact Lenses for Presbyopia and Myopia Control

Journal of Ophthalmology ◽

10.1155/2020/8067657 ◽

2020 ◽

Vol 2020 ◽

pp. 1-18 ◽

Cited By ~ 1

Author(s):

Laura Remón ◽

Pablo Pérez-Merino ◽

Rute J. Macedo-de-Araújo ◽

Ana I. Amorim-de-Sousa ◽

José M. González-Méijome

Keyword(s):

Contact Lenses ◽

Clinical Performance ◽

Adult Population ◽

Intraocular Lenses ◽

Myopia Progression ◽

Large Numbers ◽

Recent Developments ◽

Clinical Performance Assessment ◽

Presbyopia Correction ◽

Myopia Control

Bifocal and multifocal optical devices are intended to get images into focus from objects placed at different distances from the observer. Spectacles, contact lenses, and intraocular lenses can meet the requirements to provide such a solution. Contact lenses provide unique characteristics as a platform for implementing bifocality and multifocality. Compared to spectacles, they are closer to the eye, providing a wider field of view, less distortion, and their use is more consistent as they are not so easily removed along the day. In addition, contact lenses are also minimally invasive, can be easily exchangeable, and, therefore, suitable for conditions in which surgical procedures are not indicated. Contact lenses can remain centered with the eye despite eye movements, providing the possibility for simultaneous imaging from different object distances. The main current indications for bifocal and multifocal contact lenses include presbyopia correction in adult population and myopia control in children. Considering the large numbers of potential candidates for optical correction of presbyopia and the demographic trends in myopia, the potential impact of contact lenses for presbyopia and myopia applications is undoubtedly tremendous. However, the ocular characteristics and expectations vary significantly between young and older candidates and impose different challenges in fitting bifocal and multifocal contact lenses for the correction of presbyopia and myopia control. This review presents the recent developments in material platforms, optical designs, simulated visual performance, and the clinical performance assessment of bifocal and multifocal contact lenses for presbyopia correction and/or myopia progression control.

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