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Convenience: LENTIS Comfort

The tried and tested lens design of the LENTIS Comfort is adjusted optimally to the far and intermediate range and thus has been particularly successful in meeting the demanding needs that most patients have with the refractive results of cataract surgery. Bridging the gap between standard monofocal and premium refractive IOLs, the LENTIS Comfort offers both good intermediate vision as well as distance vision.

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Convenience: LENTIS Comfort

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LENTIS Comfort:
The easy solution for demanding cataract patients

The tried and tested lens design of the LENTIS Comfort is adjusted optimally to the far and intermediate range and thus has been particularly successful in meeting the demanding needs that most patients have with the refractive results of cataract surgery. Bridging the gap between standard monofocal and premium refractive IOLs, the LENTIS Comfort offers both good intermediate vision as well as distance vision.

This is especially of importance to cataract patients who want greater spectacle independence in everyday situations, such as using the computer, handling their smartphone, shopping, golfing or driving. Generally, all people who carry out manual activities further away than reading distance will benefit from this new lens.
In short: The convenient lens solution for everyday situations!.

The LENTIS Comfort offers many advantages
compared with standard monofocal IOL:
  • Excellent visual acuity results for the intermediate and distance ranges
  • Improved contrast and depth of focus for optimal vision in dimmed light
  • Natural image and colour perception
  • Aberration neutral
Patient surveys confirm:
  • Computer or varifocal lenses no longer necessary!
  • High patient satisfaction
What do the professionals say about the LENTIS Comfort?
“I have been using the LENTIS Comfort and I am enormously impressed with the outcomes and the levels of spectacle independence that this gives to my patients. I have had these lenses implanted in both my eyes and am delighted with the outcome. I can wholeheartedly recommend this intraocular lens for suitable patients.”

Brendan Moriarty, Consultant Ophthalmic Surgeon, Optegra Prospect Eyeclinic, Altrincham/Cheshire, UK, 2013, data on file.

“3 years ago I would have only considered a monofocal lens for my own eyes, but if I was considering surgery right now this is the lens I would have myself.”

Julian Stevens, Consultant Ophthalmic Surgeon, Moorfield Eye Hospital, UK, 2012, Source: Eyewiretoday

“It [LENTIS Comfort] can improve depth of field compared with a monofocal IOL and performs well in standard cataract cases for patients or surgeons reluctant to use a multifocal IOL. The LENTIS Comfort can be used with a mix-and-match approach.”

Dominique Pietrini, Consultant Ophthalmic Surgeon, Clinique de la Vision, Paris, France, 2013.

“Because of the possibility for photopic and night driving problems that can occur with all multifocal IOLs, we also have the [LENTIS] Mplus and [LENTIS] Comfort (Oculentis GmbH) in our portfolio. These lenses provide high levels of patient satisfaction, due to their good results in contrast sensitivity and reduction of glare and halos. When patients are interested in good intermediate visual acuity and have no objection to using glasses for extended reading, the [LENTIS] Comfort with its 1.50 D of near addition is our first choice. Historically, mix-and-match strategies have not been our choice, but we are considering this approach with the Mplus and the [LENTIS] Comfort after hearing of the impressive results of colleagues including Sunil Shah, MBBS, FRCOphth, FRCS(Ed), FBCLA.”

Detlef Holland, MD, The Best of Both Worlds – A mix of cornea- and lens-based options for presbyopia correction is appropriate for many practices, Cataract & Refractive Surgery Today Europe, 10/2013.

“The trend is to go more for intermediate vision nowadays because of the increased use of PCs, iPhones and iPads. The patients I see in my practice don’t mind wearing reading glasses at home for long-time reading. But they want to go out of the house and not wear glasses, use their electronic devices, do their shopping and see well.”

Oliver Findl, MD, Hanusch Krankenhaus Wien & Moorfields Eye Hospital, London, speaking of the LENTIS Comfort at the World Ophthalmology Congress 2014, Tokyo, Source: Helio Ophtalmology

Clinical Results

Dr. Dominique Pietrini, Clinique de la vision, Paris, France

The clinical trial is based on the experience of the first 50 eyes of 25 patients who received an LENTIS Comfort lens in both eyes, and who were monitored for more than six months. All the eyes operated had cataracts, but the patients were not suffering from pathologies that could put strain on the final visual result (i.e. glaucoma, maculopathy, astigmatism of above 1.00D). The average age of the patients was 70 ± 10.1 years. The refractive target was between -0.25 and 0.50D for an implant constant according to the manufacturer‘s recommendations (IOL Master, SRK-T formula). Patients received no specific information apart from being told that they might need occasional optical correction for near vision. All the patients were operated on and received the implant using a micro-incision of less than 2mm (Viscojet injector, 1.8 mm).

Charts Visual Acuity
Figure A: Visual acuity without correction for distance, near and intermediate vision, monocularly and binocularly: The post-operative spherical equivalent was -0.39D, visual acuity without correction for distance vision was 8.59/10e for monocular vision, 9.6/10e for binocular vision, intermediate visual acuity was 6.4 for monocular vision and 7.6 for binocular vision.
Figure B: The monocular defocus curve after implanting the LENTIS Comfort confirms the excellent performance of the implant for distance vision (defocus of 0.00D) and for intermediate vision (defocus of -1.50D).

Clinical conclusion: This new intraocular lens placed midway between a monofocal and a multifocal lens provides a real improvement in the visual results for cataract surgery thanks to the increased depth of field and the higher level of spectacle independence. A simple addition of +1.50D is required for near vision. No information is required beforehand, and it offers an excellent alternative to standard monofocal implants. Combined with a certain amount of monovision, it can provide almost total spectacle independence. It is also particularly indicated for patients suffering from myopisation with a preoperative index, who can keep good intermediate vision. It also presents an alternative for patients with a contraindication for multifocal lenses.

The LENTIS Comfort is an excellent alternative to multifocal implants, especially for patients who are worried of the risk of visual side-effects regarding multifocal IOL, in particular for mesopic vision. The almost total lack of halo and/or glare effects often experienced with asymmetric multifocal lenses brings the benefits of a premium implant, but without the side effects.

Clinical Results

Prof. Dr. Jorge Alió, University Ophthalmology Clinic, Miguel Hernandez, Alicante, Spain

In a comparative study by the Vissum Ophthalmology Institute (Alicante, Spain) under the management of Professor Alió, the visual results and the optical quality of the LENTIS Comfort and of a so-called accommodating lens were observed, and evaluated post-operatively in just under 40 patients and 66 implanted eyes. The LENTIS Comfort produced, for all distances, in particular in the wide intermediate range, considerably better visual acuity results than the accommodating IOL.

Chart Visual Acuity
Figure: Comparison of mean defocus curves of LENTIS Comfort (group A) and accommodating IOL (group B). The figure shows markedly better visual acuity results for the LENTIS Comfort in all visual ranges.
High Patient Satisfaction
In a representative survey, conducted by Dr. Julian Stevens (Moorfields Eye Hospital, London, UK) 92% of 192 surveyed patients, who were treated with a LENTIS Comfort IOL confirmed that they would opt for this lens again at any time due to the good visual results.

Bibliography:Jorge L. Alió, MD, PhD, Gerd U. Auffarth, MD, PhD, FEBO, Christoph Binder, MD, Detlev R.H. Breyer, MD, Oliver Findl, MD, MBA, FEBO, Detlef Holland, MD, Florian T.A. Kretz, MD, FEBO, Joseph Reiter, MD, Jan A. Venter, MD, Patrick Versace, MD, The Oculentis Toolbox for Lens Surgery – LENTIS Comfort for cataract surgery, LENTIS Mplus Family for refractive cataract surgery, FEMTIS for laser-assisted cataract surgery. Supplement to Cataract & Refractive Surgery Today Europe 01/2015Gerd U. Auffarth, MD, PhD, FEBOphth, Das Konzept der Zukunft – MIOL mit unterschiedlicher Nahaddition, Ophthalmologische Nachrichten (Biermann Verlag), 06/2014

Sunil Shah, MD, FRCOphth, FRCS(Ed), Magda Rau, MD, Detlef Holland, MD, Julian D. Stevens, MRCP, FRCS, FRCOphth, Gerd U. Auffarth, MD, PhD, FEBOphth, Florian T.A. Kretz, MD, FEBO, Manfred R. Tetz, MD, Detlev R.H. Breyer, Hiroyuki Arai, MD, PhD, Ludger Hanneken, MD, Dominique Pietrini, MD, Ruediger Schmid, MD, FEBO, Ben Wanders (CEO Oculentis BV), Experts Uncover the neXt generation of LENTIS IOLs – Innovative solutions for presbyopia, laser refractive cataract surgery IOLs, AMD, and more, Supplement to Cataract & Refractive Surgery Today Europe 02/2014

Jorge L. Alió, MD, PhD; Gerd U. Auffarth, MD, PhD, FEBO; Roberto Bellucci, MD; Oliver Klaproth, Dipl-Ing(FH); Thomas Kohnen, MD, PhD, FEBO; Peter Mojzis, MD, PhD, FEBO; Thomas F. Neuhann, MD; Tobias H. Neuhann, MD; Milind Pande, MBBS, DO, FRCS, FRCOphth; Dominique Pietrini, MD; Magda Rau, MD; Pavel Stodulka, MD, PhD; Marie-José Tassignon, MD, PhD, FEBO; and Jérôme C. Vryghem, MD, State of the Premium IOL Market in Europe, Cataract & Refractive Surgery Today EUROPE January 2013.

Jorge L. Alió, MD, PhD; Ana B. Plaza-Puche, MSc, Raul Montalban, MSc, Jaime Javaloy, MD, PhD, Visual outcomes with a single-optic accommodating intraocular lens and a low-addition-power rotational asymmetric multifocal intraocular lens, J CATARACT REFRACT SURG – VOL 38, JUNE 2012.

Dominique Pietrini, MD Consultant, State of the Premium IOL Market in Europe, Cataract & Refractive Surgery Today EUROPE January 2013.

Dominique Pietrini, MD Consultant, Expérience du nouvel implant LENTIS Comfort dans la chirurgie de la cataracte, Les Cahiers d’ophthalmologie, n° 165 – Décembre 2012.

Julian Stevens, MRCP,FCRS,FRCOphth, Moorfield Eye Hospital, London, UK, Oculentis Mplus “Comfort” low power add multifocal lens implant, clinical presentation 2013, data on file.

Brendan Moriarty, Consultant Ophthalmic Surgeon, Optegra Prospect Eyeclinic, Altrincham/Cheshire, UK, 2013, data on file.

Standard View
Figure: A standard lens treats cataracts perfectly, but does not fulfil the wish for greater spectacle independence for intermediate ranges. Consequently, the patient, despite having undergone cataract surgery, has to rely on special and costly glasses, like varifocals.
Convenience View
Figure: The LENTIS Comfort offers both sharp distance and good intermediate vision and thus providing greater spectacle independence. Clinical results attest an optimal visual performance with this IOL.
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LENTIS: Large selection of IOL designs

Oculentis offers a variety of IOL designs. Choose between (a)spherical, 1-piece or 3-piece IOL, IOL with or without violet light filtering technology
Aspherical intraocular lenses

The imaging quality of intraocular lenses (IOL) is one of the key factors to ensure an optimal vision for patients after a cataract surgery.

Aspherical LENTIS IOL are characterized by an aberration corrective surface structure. Basis for their design is not as usual a purely spherical cornea but a slightly aspherical cornea (anticipated in the human eye). Studies have shown that the human cornea shows asphericity in respect of the statistical median. Due to this fact, Intraocular lenses, which take into account this aberration, lead to a better visual acuity and better image quality.

Lentis lenses
Figure: All aspherical LENTIS lenses are also available with violet light filter: LS-312Y and LS-313Y
 
Lentis lenses

LS-412Y:

Oculentis’ 3-piece aspheric IOL with violet light filter is by its overall diameter of 13.0 mm (optical diameter 6.0 mm) the perfect intraocular lens for the optimal sulcus fixation.

 

 

SML-Technology
All aspherical LENTIS lenses are manufactured in the sub-micron lathing process. The square-edge design and the superior surface quality of our HydroSmart Acrylic reduce the post-surgery-cataract formation and thus the post-treatment rate. A recent study conducted by the Berlin Eye Research Institute (BERI confirms the exceptionally sharp optic edges of the LENTIS IOL for a better PCO prophylaxis (Study as PDF-Download below). All LENTIS lenses show an excellent biocompatibility and high stability in the capsule bag.

 

Spherical intraocular lenses
All spherical lenses of Oculentis are manufactured with a state-of-the-art Sub‑Micron Lathing technique. Thanks to this technology, the lenses do not require additional polishing after production and thus keep their square edges. This “square edge design“ as well as the excellent surface quality lead to a lower rate of secondary cataract formation and thus reduce the need for additional treatment.
Lentis lenses
Figure: All spherical LENTIS lenses are also available with violet light filter.
For more detailed specification regarding our LENTIS IOL refer to the respective product information or contact our Team International Representative

Excursus about Asphericity

Spherical Intraocular Lenses

Spherical aberrations are an optical imaging error, which leads to impaired vision. External light rays are refracted more strongly than the more central rays (see figure). Therefore, not all light rays will focus on the macula (yellow spot or „point of sharpest vision“). This results in poor contrast sensitivity. Spherical intraocular lenses do not correct these aberrations.

Spheric

Aspherical LENTIS Intraocular Lenses

All aspherical LENTIS intraocular lenses correct these spherical aberrations. The aspherical lens surface focuses all the light rays correctly on the macula. Thereby an optimal image on the retina is created which leads to a very good contrast sensitivity for the patient. In turn twilight vision will be improved.

Aspheric
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