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ReSTOR+2.5 D VS ReSTOR+3.0 D

Comparing and contrasting Presbyopia implants ReSTOR+2.5 D VS ReSTOR+3.0 D

ReSTOR®+2.5 D IOL

ReSTOR ® +2.5 D IOL with ACTIVEFOCUSTM optical layout for the patients with energetic lifestyles, such as those who

  • Participate in activities requiring more intermediate (53 cm/21 in) and distance (4 m/13 ft.) vision
  • Are not willing to compromise distance vision for a full range of vision
  • Desire more opportunity for a range of vision versus mono-focal
  • Might prefer an alternative to mono-vision
  • Desire increased spectacle independence

The ACTIVEFOCUS optical layout is crafted to take those patients’ distance vision a step further while offering the well balanced near as well as intermediate efficiency with the objective of reducing spectacle dependency for tasks like:

  • Driving and dashboard viewing while driving
  • Playing or watching live sports
  • Attending theater or performance events live

* Active-lifestyle individuals join activities that need intermediate as well as distance vision such as golf, tennis, home cleaning and also driving.

ACTIVEFOCUSTM Optical Design

Using sharp distance vision plus well balanced efficiency at near as well as intermediate focal points, the AcrySof® IQ ReSTOR®+2.5 D IOL features:

  • 7 diffractive steps
  • 3.4 mm diameter diffractive region (8.4 mm2 total diffractive area)
  • Large peripheral zone that allocates more light to distance as pupil size increases
  • 0.94 mm-diameter central refractive zone dedicated fully (100%) to distance vision
  • -0.2 μm negative asphericity

The result?

  • ReSTOR ® +2.5 D IOL designates a lot more light to the distance focal point at every pupil size, however particularly in mesopic problems.

Light distribution at a 3.0 mm pupil aperture:

  • Distance: 69.4%
  • Near: 18.0%
  • Total: 87.4%

ReSTOR®+3.0 D Multifocal IOL

Ophthalmologists should recommend IQ ReSTOR ® +3.0 D IOL with a pupil-adaptive layout for their appropriate patients who desire:

  • A broad range of vision from 16 inches (40 cm) to distance
    • The greatest opportunity for spectacle independence
    • To engage in a variety of activities requiring near, intermediate and distant focal points

Developed to minimize spectacle dependency in all distances for the broadest array of vision, this sophisticated IOL can aid your patients refocus on the activities they love:

  • Reading
    • Cooking
    • Playing cards
    • Watching TV

Pupil-Adaptive Optic Design

Providing exceptional performance at whatsoever distances, the AcrySof ® IQ ReSTOR ® +3.0 D IOL includes a pupil-adaptive optical layout crafted to maximize efficiency in all lighting conditions with the following features:

  • 9 diffractive steps spaced closer together
  • A larger diffractive region (3.6 mm diameter, 10.2 mm2 area)
  • A 0.86 mm-diameter central diffractive zone dedicated 60% to the near focal point (40% to distance)
  • Negative asphericity of -0.1 μm

The result?

ReSTOR ® +3.0 D IOL disperses light much more uniformly in between the near and distance focal points in photopic problems, preferring distance much more as the pupil broadens in mesopic problems.

Light distribution at a 3.0 mm pupil aperture:

  • Distance: 59.0%
  • Near: 25.5%
  • Total: 84.5%

We would like to summarize that both ReSTOR+2.5 D VS ReSTOR+3.0 D are PIE manufactured by Alcon. Dr. Khanna has experience with both the styles.

RESTOR 2.5 VS SYMFONY.

AN APPROACH TO CHOOSING PRESBYOPIA CORRECTING IMPLANTS IN THE CONTEXT OF               RESTOR 2.5 VS SYMFONY.

With reference to Presbyopia Correcting Implants, it is an accepted fact amongst ophthalmologists that  extended depth of focus lenses have actually increased interest in presbyopia-correcting lenses for surgeons as well as patients. As this topic relates, these implants provide an extended focal range rather than 2 unique focal points as in a multifocal lens. Although optically the Tecnis Symfony uses a unique system, functionally the Tecnis Symfony works likewise to a low add multifocal in offering patients distance as well as intermediate vision.

However like any type of lens that prolongs beyond a single focal point, the EDOF Symfony does have its constraints. Despite an ideal emmetropic result, a couple of patients complained about “spiderweb” glare, specifically while driving at night. These complaints become much more common when there is residual refractive error. These implants are certainly much more flexible of residual refractive error than conventional high add multi-focals, however, Doctors have actually learned to avoid doing mini-monovision with them due to these undesirable visual phenomena.

Around 60% of cataract patients choose presbyopia-correcting lenses, and here’s an approach the eye surgeons actually found to be extremely rational based on data from several research studies they have actually performed on patient satisfaction.

Initially, we’ll just talk about patients who are good prospects for a multifocal or EDOF lens. They have healthy and balanced maculas, controllable completely dry eye as well as fairly aberration-free corneas.

If a patient has astigmatism more than 0.5 D and also desires distance and intermediate vision, the Symfony toric is a an option.

For patients who prefer distance, intermediate as well as near, I do not recommend targeting a mini-mono-vision with an EDOF Symfony lens. A lot of these patients do not tolerate the spider-webs in the non-dominant, near eye. With low astigmatism, it likewise makes sense to do this with a Tecnis multifocal 2.5/3.25 also.

Now lets look at Restor active focus. It is yellow in color. It also provides ability to correct astigmatism.Again we do not recommend monovision with these. We have tried mini monovision in patients who were aleready employing that strategy with contact lenses. Those pateints did well. A better option, these patients will certainly do well with a ReSTOR ActiveFocus 2.5 in the leading as well as a +3.0 ReSTOR in the non-dominant eye. Therefore, we can achieve goal of reducing spectacle dependence for activities like Driving and Dashboard viewing, Playing or watching live sports & attending theatre or performance events. While Tecnis SYMFONY IOL lessens the effects of presbyopia and enable the patients to see clearly.

COMPARISON :-

  SYMFONY   Tecnis Symfony is an extended depth of field lens. It works  a low add multifocal in offering patients distance as well as intermediate vision.   Patient’s complaints about “spiderweb” around lights, specifically while driving at night.         Tecnis Symfony is certainly much more flexible of residual refractive error than conventional high add multifocals for patients who prefer distance and also intermediate (but not near) vision and if they have low astigmatism.   Appropriate for patients who prefer distance, intermediate as well as some near vision.   It has high refractive accuracy but can rotate.   ReSTOR ActiveFocus 2.5   While ReStOR works on those patients who have astigmatism more than 0.5 D     With ReSTOR, patients have complaints of glare and also halos. They do not face “spiderweb” glare problems. They do well with a ReSTOR ActiveFocus 2.5 in the leading as well as a +3.0 ReSTOR in the non-dominant eye.   ReSTOR one may have desire more opportunity for a range of vision versus monofocal.         For patients who are not willing to compromise distance vision for a full range, ReSTOR is an appropriate answer. ResTOR is having more rotational stability for both eyes, again targeting emmetropia. This is important with toric lenses        

CONCLUSION:-

In the present scenario, multifocal intraocular lenses (MF IOLs) are the most stable,reliable and dependable method for the surgical correction of presbyopia.  While looking at the facts, residual astigmatism is one of the leading causes of dissatisfaction after the implantation of a MF IOL.  

These IOLs require emmetropia for the attainment of the best visual results, and small amounts of astigmatism that may limit visual performance significantly.  Thus, astigmatism has to be completely corrected in order to obtain the maximum efficiency of a MF IOL. Hence, we like to correct astigmatism by various methods. If it is astigmatism with spherical equivalent of zero, we perform limbal relaxing incisions at the time of cataract surgery or during follow-up period. When there is associated myopia or hyperopia we deploy advanced wavefront idesign laser vision correction achieve emmetropia.

symphony toric presbyopic implant

Symfony or Tecnis Multifocal lens for Presbyopia Treatment

Today our topic of discussion will be Symfony or Tecnis Multifocal lens for Presbyopia Treatment.

Hi. I am Doctor Khanna, here with some models of intraocular lens implants when we do cataract surgery or we want to get rid of glasses and you are not a candidate for Lasik surgery. For example, if you are 56 years old and you want to be able to see far, middle and near, then you are up for presbyopic implants. There are different types of presbyopic implants. Today, we are going to talk about the differences between ‘Tecnis’ and ‘symfony’, which are both from Johnson and Johnson.

This is how the lenses look like. This is a clear lens and this is ‘Tecnis’ and ‘symfony’. ‘Symfony’ has less rings than ‘Tecnis’ and it is considered an EDOF (extended depth of field) lens. Whereas, ‘Tecnis’ has certain ridges, which splits the incoming light into distant and near. You can see distant and near and the bimodal curve, lets you see middle. ‘Symfony’ acts like a pin hole camera where you can see middle, distance and somewhat near.

How are you going to choose between the two? If you have long hands, then choose ‘Symfony’ but if you want to real closely then choose ‘Tecnis’. If you have had previous surgery like radial keratotomy then ‘symfony’ might be a better choice. In terms of side effects, ‘Tecnis’ has glare initially which faded away and ‘Symfony’ you can see a spider web. The best option is to discuss these various choices with your surgeon and to make sure that the surgeon is comfortable with the choices.

If you have more questions about Symfony or Tecnis Multifocal lens for Presbyopia Treatment call (310) 482 1240.  You can always read my book on amazon ‘The Miracle of PI in Eye’.

Have a wonderful day.