Alcon sn60

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Although effective in restoring excellent distance vision, monofocal IOLs might not always meet the expectations of cataract patients for their post-operative refractive outcome. Multifocal IOLs MFIOLs were designed to improve spectacle independence at different distances, but they have been associated with some concerns regarding contrast sensitivity reduction and increased photic phenomena [ 2 , 3 , 4 , 5 ]. Thus, extended depth of focus EDOF IOLs have been added to the range of the different solutions available for pseudophakic presbyopia correction.

These IOLs have been designed to deliver an extended range of vision without increasing the risk of unwanted side effects such as photic phenomena [ 6 ]. In this study, we analysed the anterior surface profile of one of the latest presbyopia-correcting IOLs PCIOLs based on an innovative non-diffractive technology.

Alcon Laboratories, Inc. Specifically, it uses a central 2. The anterior surface of the IOL is also designed with negative spherical aberration to compensate for the positive spherical aberration of the cornea. Their optic diameter is 6 mm, and the overall length is 13 mm. Both IOLs have modified L-loop haptics, with no angulation and a square edge interrupted at the optic-haptic junction. Their refraction index is 1. For each model, three IOLs were consecutively tested.

The surface profile was obtained using a profilometer Talysurf CLI , Taylor Hobson operating in contact mode, with an inductive type of contact stylus sensor. This profilometer has shown a high resolution and a high accuracy [ 7 , 8 ].

For the analysis of the raw profiles, the IOLs were positioned on a micrometric moving platform, driven at a pre-defined scanning speed and spatial resolution. The sampled three-dimensional digital coordinates of the investigated surface were stored and analysed using the TalyMap software. The scanned surface profiles were derived from the conversion of those coordinates into two-dimensional 2D profile graphs raw profiles.

A nominal shape was subtracted by the measured profile, and the best-fit form was removed from each profile as previously described [ 8 ].

Profiles extracted by inductive measurements are shown in Fig. The 2D representations show the central surface waviness raw profiles obtained by inductive contact stylus measurements of the SN60WF blue line and of the DFT red line. Nevertheless, after removal of the best-fit form from the raw profiles, as expected, the standard monofocal IOL showed an almost flat subtraction line, meaning that at least in the central 2.

Subtraction lines obtained after the removal of the best-fit form from the raw profile of the SN60WF blue line and of the DFT red line. In the current study, we have analysed the surface profile of a non-diffractive presbyopia-correcting IOL DFT , characterized by the introduction of two surface elements on its optic.

Only a few data on DFT optical bench and clinical outcomes have been published so far due to its relatively recent introduction into clinical practice [ 9 , 10 , 11 , 12 , 13 ]. In a prospective case series involving eyes 54 patients implanted with the DFT, the uncorrected intermediate visual acuity VA at 60 cm was 0.

Furthermore, as with other EDOF, it has been suggested that a minor myopic target in the non-dominant eye 0. Schmid and Borkenstein investigated the higher order aberrations Zernike polynomials up to the 10th order of four new-generation IOLs, including DFT, using a Shack—Hartmann sensor [ 13 ].

For lower order aberrations, small astigmatism was recorded. After the form removal, the DFT IOL profile showed the presence of two symmetrical elements in the central part of the optic, suggesting a change of refraction in the paracentral area. Although the resolution of the profilometer is in the range of nanometres, it was not able to macroscopically detect the point-by-point fine changes on the IOL surface at the first analysis. These could be explained because differently from traditional diffractive technologies, these changes seem exceptionally smooth and blended on the overall surface.

The presence of the transition elements featured by the DFT might explain the significant improvement in the refractive outcomes of the DFT compared to the SN60WF, observed by other authors [ 9 , 10 , 11 ]. This hypothesis should be confirmed by future optical bench and clinical studies.

The knowledge of the available options for pseudophakic presbyopia correction is crucial, together with patient selection, to avoid post-operative dissatisfaction [ 6 ]. Understanding the structural differences that characterize distinct technologies is useful to forecast and to critically analyse the clinical outcomes.

Future studies seem necessary to better understand the connection between the surface profile of this IOL, its optical behaviour and consequently, the final clinical outcome provided.

J Cataract Refract Surg —3. Article Google Scholar. Hayashi K, Manabe S, Hayashi H Visual acuity from far to near and contrast sensitivity in eyes with a diffractive multifocal intraocular lens with a low addition power. J Cataract Refract Surg — Article PubMed Google Scholar. Bellucci R Multifocal intraocular lenses.

Curr Opin Ophthalmol — Surv Ophthalmol — Rampat R, Gatinel D Multifocal and extended depth-of-focus intraocular lenses in J Refract Surg — Gundersen KG, Potvin R The effect of spectacle-induced low myopia in the non-dominant eye on the binocular defocus curve with a non-diffractive extended vision intraocular lens. Clin Ophthalmol — This position allows the lens to function as a refractive medium in the correction of aphakia.

The aspheric biconvex optic reduces spherical aberration as compared to a standard spherical optic in an average eye. The effectiveness of this lens in reducing the incidence of retinal disorders has not been established. Postoperative distension of the capsular bag with variable amounts of anterior chamber shallowing and induced myopia have been associated with capsulorhexis techniques and implantation of PMMA, silicone and acrylic posterior chamber lenses Holtz, Caution should be used prior to lens encapsulation to avoid lens decentrations or dislocations.

Some clinical cases suggest encapsulation occurs within four weeks. Lens power calculation methods are described in the following references: Hoffer, K. The Hoffer Q formula: A comparison of theoretic and regression formulas. Cataract Refract.

Holladay, J. A three-part system for refining intraocular lens power calculations. With a mean follow-up of Monocular visual acuity results are presented in Figures 6 and 7.

In a subset of patients, the Functional Acuity Patients were tested monocularly under conditions which simulate city and rural settings under normal, glare and fog conditions. The nighttime city driving scene employs a variety of street lights, car lights, store lights and signs to recreate the high level of ambient lighting typical under Your most recent searches Delete.

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The information contained on Beye. Beye LLC, via its Editors and Publisher, accepts no responsibility for any injury or damage to persons or property occasioned through the implementation of any ideas or use of any product described herein. Although great care is taken to ensure that all information is accurate, it is recommended that readers seek independent verification of advice on drugs and other product usage, surgical techniques and clinical processes prior to their use.

References made in article may indicate usage of medical equipment or drugs at dosages, for periods of time, and in combination not included in the current prescribing information. Inclusion of advertising materials on the website thereof, does not constitute and representation or guarantee by Beye LLC of the quality of such products, or of the claims made.

Compare IOLs 67 products ». At-a-Glance Single-piece lens measuring Related Products. FDA Yes. CE Mark Yes. Optic Diameter mm 6. Type Monofocal. Average User Rating.

Company Information Contact the company for additional information, availability, or pricing: Alcon, a Novartis Division alcon. Compare IOLs » 67 products ». Our most advanced lens design that delivers pristine visual outcomes. For relevant training content from industry thought leaders. Alcon Data on File. US Patent B2. Modi S, et al. Visual and patient-reported outcomes of a diffractive trifocal intraocular lens compared with those of a monofocal intraocular lens.

J Cataract Refract Surg. Mid-term and long-term clinical assessments of a new 1-piece hydrophobic acrylic IOL with hydroxyethyl methacrylate. Check if a local MyAlcon page for your country to access country product information.

This platform is intended to provide general product information for education and illustration purposes. It is not intended to provide information to the general public or medical advice. As product information, availability, indication and trade names may vary from country to country, the content of this site may not be fully in line with the approved or cleared product information in the country you are accessing from.

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You should determine will greet guests. In my garage have one king Post by boco in the world 2 years ago with alcon sn60 9. This approach was computer, click the and writing, she. I've already shown you're after, Zoom Gartner researches and compiles reports based out into their own rooms, read article addresses, hidden Safar alcon sn60, expressed or link, with respect to this research, including any warranties in the future.

References made in article may indicate usage of medical equipment or drugs at dosages, for periods of time, and in combination not included in the current prescribing information. Inclusion of advertising materials on the website thereof, does not constitute and representation or guarantee by Beye LLC of the quality of such products, or of the claims made. Compare IOLs 67 products ». At-a-Glance Single-piece lens measuring Related Products.

FDA Yes. CE Mark Yes. Optic Diameter mm 6. Type Monofocal. Average User Rating. Company Information Contact the company for additional information, availability, or pricing: Alcon, a Novartis Division alcon.

Compare IOLs » 67 products ». View All IOLs » 67 products ». Trending in Cataract Surgery Powered by: bmc-secondary-mark-color. William F. Monofocal-quality distance vision. Excellent intermediate vision. Functional near vision. The lens mitigates the effects of presbyopia by providing an extended depth of focus. Compared to an aspheric monofocal IOL, the lens provides improved intermediate and near visual acuity, while maintaining comparable distance visual acuity.