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
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:
* 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:
Light distribution at a 3.0 mm pupil aperture:
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:
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:
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:
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:
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.
While bidding adeu you may say Good riddance to contact lenses too.
Imagine getting up in the morning and looking at the alarm clock with your naked eyes. You then grab your smart phone to check on your email and the latest from your friends on face book. While eating breakfast you skim through the newspaper. Continuing the trend, you drive with no glasses to work and then go on to play golf. After playing the best golf of your life, you get a quick swim in which is a pleasure without glasses or contact. On way home you pick up groceries without squinting. Then you cut some organic veggies for a nice dinner. Catching up on bedtime reading, you wonder why you did not get this unbelievable rejuvenating therapy before.
How is that possible? But first why not talk about why you even need glasses for reading. or I think I may have presbyopia.
Presbyopia is medical jargon for ageing eyes.
What causes presbyopia?
There is increasing stiffening of natural lens and decreasing strength of eye muscles. The zoom mechanism of the natural lens undergoes deterioration.
Old is difficult to define. This condition is present in mid forties. It may appear a little earlier in farsighted people. People with smaller pupils may display a delay in onset of presbyopia.
We have a few choices to overcome this natural malady.
Pie is the creme de le creme of methods to rejuvenate ageing eyes. Let us explore how it is superior to other methods which combat effects of taking too many revolutions around the sun.
PIE is more advantageous than Glasses
Heck yeah. You agree with this or you would not be reading this page.
It’s safe to say PIE overcomes all these nuisances.
Pie gives binoucularity which is better than Monovision
This is a process of setting the focus of one eye on close-up objects and the focus for your other eye on far-away objects. In doing this, your brain combines the two images to create a clear picture. This is a relic from the twentieth century. Primary disadvantage is one looses binocular vision.
PIE allows you to preserve binocular depth of field vision.
Brain prefers PIE to multifocal contact lenses
Multifocal contacts move with every blink. The image presented to the brain fluctuates confusing it. That is why many people are not able to adapt to multifocal contact lenses.
PIE are stable and do not move. Brain neuroadapts improving vision.
Contact can lead to sight threatening cornea infections for as long as you wear them.
PIE is not exposed to the elements or bugs.
Types of PIE
Multifocal PIE let you see far and near
These include the ReZoom, ReSTOR, Symfony and Tecnis lenses. Multifocal IOLs are lenses that have concentric rings of varying focal power, like a bullseye. Some rings provide focus for near objects, others for mid-range objects, and some for seeing objects at a distance.
The Tecnis Multifocal Foldable IOL also has concentric rings for different distances. It received FDA approval in January, 2009 for use in cataract surgery, where the natural lens is replaced. In the clinical trials most participants achieved 20/25 distance vision or better and 20/32 or better for near vision. It is designed using Wavefront data – the same precise level of information that is gathered when you are having Wavefront LASIK.
Accommodating PIE implants mimic natural lens
These lenses are designed to change focus. An accommodating IOL allows you to see distant objects, and then is can change focus and allow you to see objects that are close up. The only accommodating IOL approved in the United States is the Crystalens. This was true in 2005 and is still true in 2014. We even have toric crystalens called trulign.
Wherever you live you will want to enjoy good vision. If you want to see near and far , please contact our
office today. Los Angeles ophthalmologist Dr. Khanna and his staff can help you find the new technology PIE that is best for your lifestyle and needs. Please call today to schedule your free vision screening so that you can see far and near and your computer too.
By Rajesh Khanna MD
Hi, it’s Dr Khanna – we are tackling questions relating to Presbyopia.
Our first question is, “Can Presbyopia be corrected?” The answer is yes, Presbyopia can be corrected. We can use glasses, contact lens to overcome the effects of presbyopia, but if you want to totally correct it, we have to do a surgical procedure.
“Can presbyopia be reversed?” Yes we can reverse the ageing eyes, by putting in presbyopia by putting in presbyopia implant inside the eye. And that’s why it answers the next question.
“Can presbyopia be cured?” Yes, presbyopia can be cured and ageing eyes can be reversed with ‘PIE’ which is acronym for ‘Presbyopia Implant in Eye’
“Can presbyopia correct myopia?” No, presbyopia cannot correct myopia, but myopia helps in deferring the onset of presbyopia. Because myopia means that a person is nearsighted, they can see near but not far, so they wear glasses to see far. But when they take the glasses off, they can see near. So when they become presbyopic, the nearsightedness helps them, but after some point in time, the help vanishes.
“Can presbyopia cause headaches? Can presbyopia cause dizziness?” The answer is yes, and I’ll give you examples of this engineer, who is working on small microchips, and because of presbyopia, he tries to be very focused, he developed so much headaches and dizziness… that he had already been referred to orthopedics, neck surgeons, neurologists, and the only thing that cured him was PIE, when we did Presbyopia implant in his eyes, then he was able to get natural vision, and his awkward sitting posture was eliminated.
“Can presbyopia cause blindness?” Blindness in the sense of you not being able to see near. So it will be blindness for near, if you don’t use glasses or contact lens. And that must have been the case in smaller villages, and third-world countries where they can’t afford glasses, they’re not able to see near. And it’s also a manifestation of more of the industrialized world. Because as farmers, you may not need a lot of near vision, you don’t read, you plough, you milk cows and you may not notice the loss of near vision as you would notice when you’re on the computers or reading all the time.
Can presbyopia improve? With some exercises you can get improvement in presbyopia, especially during the early part when the presbyopia first starts. Doing some exercises like closing one eye and forcing your eye to read, and then doing the same on both, and then opening and trying to focus in and trying to bring it in gradually, that can help. So I think that’s one of the advantages you can get, but if you are 60 years old and already wearing, there’s unlikely to be a dramatic improvement. But some people get improvement when they develop cataracts, and that’s on their second sight. Because when nuclear sclerotic cataracts do a lot, it acts like a magnifying lens and makes you near sighted, so a person can then read, which they were not able to read before.
“Will Lasic make presbyopia worse? Presbyopia has got no sighted around its fixed stage, Lasic is not going to make it worse, it can mask the presbyopia. So in a farsighted person, doing Lasic can improve your reading and defer presbyopia. Whereas in a myopic person, if you correct for a near sighted parson, next they might have a need for reading glasses.
“Will everybody get presbyopia? Yes, everybody sooner or later gets presbyopia.
“Will surgery help presbyopia?” Yes, surgery does help presbyopia, and we are going to get into the details of presbyopia implants in our next set of questions. After this one which says
“Will Lasic correct presbyopia?” Lasic cannot correct presbyopia it can counteract the effect of presbyopia. What I’m trying to say here is, Lasic works on the static corneal, whereas presbyopia is a problem of the dynamic lens. So Lasic cannot cure or reverse presbyopia, it can help mask the effect. So if somebody is farsighted and we do Lasic, then your vision can improve. Or if somebody is planar and we make we make one eye for reading called blendo mono-vision , then they can be free of readers. But it does not cure presbyopia. The only thing that cures presbyopia and reverses ageing eyes is ‘PIE’ or ‘Presbyopia Implant in Eye’
In our next set of questions and answers will be related to presbyopia implant procedures. Thank you and stay tuned.
Hi, it’s Dr Rajesh Khanna, and if you were born before 1965, you should not miss this episode, because now we’re going to discuss about presbyopia with a flurry of questions. Oh my God, I didn’t even realize that a lot of people would be interested. But the number of questions are even more than what came for lasik. We’ll start with the first question and it is actually related to the same word “start”.
“When does presbyopia start, or when does presbyopia occur?” So presbyopia means ageing eyes in simple terms. Around 40 to 50, between that age group, our lens has hardened, the muscles… they’re called ‘Zonules’ , they’re very thin fibrous but they act like muscles that pull against the shape of the lens, they begin to weaken. So in that age group, it’s almost mathematical how the weakness occurs. Usually at age 40, you need zero diopters of reading add, but by the time you hit sixty, you need plus three reading add. In between for every four – five years, it increases by half a diopter. “When does presbyopia stabilize?” So it begins to stabilize towards the end of 50’s and early 60’s, because the maximum limit is reached, which is 3 diopters.
“Who gets presbyopia?” Everybody gets presbyopia. Whether you are a man, woman, whichever ethnicity, but not 100%, so you know that everything that is a bell-shaped curve, some people will get it in their 30’s, and some people will not get it until 70’s, but the rule of thumb, everybody gets presbyopia around 45 years of age, which affects the near end reading activities.
“Who discovered presbyopia?” I think even as early as Benjamin Franklin, or even if you go back to the 13th century, there are pictures where people have invented some sort of glasses to be able to read. So I think presbyopia had been there for a long time with us. And it might have started when men and women started living longer. Because as you know, people who follow the Paleolithic diet etc, in those times, human age was around 30-32 years, so people did not live long to experience presbyopia. But I think that around the time of our millennia, about 2000 years ago, when human life began to increase, we experienced presbyopia.
“What does it mean presbyopia?” Presbyopia means ageing eyes. “What age does presbyopia start?” We again discussed that, around 40 to 45. “What to do when you get presbyopia?” There are a couple of things you can do. You can push your hands a bit further and try to read. You can get glasses, or you can put a contact lens in one eye and not the other and make it for reading, or there are surgical procedures which we will discuss in following questions and answer.
“What is presbyopia contact lens?” So I was just hinting at that. So if you wear contact lens in one eye, that will help you read with one eye, whereas the other eye will see far. There are also multifocal contact lenses, but they don’t work very well because with each blink, the lenses move. And most of the people are not able to tolerate that fluctuation in image. “What does presbyopia mean in medical terms?” So in medical terms, it’s the failure of the lens to change its power, by changing its shape.
“What is presbyopia and myopia?” So that’s important because presbyopia occurs in everybody. Whether you are farsighted, you’re plano, or myopic. So in farsighted people, it occurs maturely in their 30’s, myopia people who are nearsighted can read fairly longer into their 40’s and sometimes 50’s until it begins to affect them too.
“Why is presbyopia not a refractory error?” This is a very good question, because the refractory errors we say are myopia, hyperopia and astigmatism because they are static. Presbyopia is a failure of the dynamic part. So just to repeat that, nearsightedness, farsightedness and astigmatism are static problems, so they occur under 40, whereas presbyopia is a dynamic problem.
“Are hyperopia and presbyopia the same?” No, hyperopia just now as we mentioned, is a static problem with the eye being small or the cornea being flat, whereas presbyopia is an ageing issue.
And now, we are going to come to some questions which will be tackled in our next episode, ‘How to kill or treat presbyopia’, so stay tuned for the next episode. Thank you and have a wonderful day.
Everyone will experience presbyopia as they grow older. If you are currently using reading glasses or bifocals, you may be interested in some of the more permanent presbyopia treatment options that are now available. Our experienced Beverly Hills ophthalmologist Rajesh Khanna, MD offers three main forms of presbyopia treatment:
There is no reason you should resign yourself to using reading glasses or bifocals for the rest of your life. Today’s presbyopia treatment options make it possible to enjoy clear vision at all distances again, freeing you to do and enjoy more on a daily basis.
To discuss presbyopia treatment in more detail, please contact The Khanna Institute today or call (888) 339-8143 to schedule a consultation with our experienced Beverly Hills eye doctor. We serve patients in Beverly Hills, Westlake Village, and surrounding areas of Los Angeles, California.
As you grow older, you may find that is more difficult to read, use the computer and focus on near objects. The reason is presbyopia. This is a medical condition where people begin to lose the ability for their eyes to focus.
The earliest warning signs can be seen between the ages of 40 and 50, though some experience symptoms years before.
Difficulty reading and blurred near vision are two of the most common signs of presbyopia. Some individuals may also experience headaches and eye fatigue as well.That is when the need for readers and cheaters starts. Gradually the dependence increases.
The most common symptoms of Presbyopia include:
If you or a loved one is exhibiting the early signs of presbyopia, it is important that you contact our Ventura or Los Angeles County Office as soon as possible so that your condition does not worsen. We offer free vision screenings for all new patients. Please schedule your appointment with Dr. Khanna today.
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Hi folks. This is doctor Khanna, your laser eye man. Coming to you with some new information. Today, I am going to talk to you about the 7 myths of cataract eye surgery. Cataract surgery has been there for many ages. You have probably heard about it but what is interesting is that your grandparents have probably heard about it. Even their grandparents knew about cataract surgery. Over the years, cataract surgery has advanced so much. The surgical finesse has become so much better that the modern day cataract surgery is way ahead the cataract surgery that was performed 60-70 years ago.
The problem is all the new information and knowledge has not circulated to the masses. Most of the information from decades old technology is still circulating amongst our friends and relatives. Today, I want to destroy all these myths, which are still existing.
MYTH 1 Cataract Surgery You have to wait for cataract to get ripe before they can have surgery.
This might have been true around 60 years ago when we did not have microscopes, surgical lubes and stitches. We did not have modern technology to pulverize the lens and take it out through small openings. At that time, the only to take it out was when you could see that the cataract is white, red or black. Freeze it and then pull it out in mass. Over the years, we have developed surgical loops, microscopes to binocular microscopes and we can see the smallest things in there. We can make minute openings, go in there and remove lens, which might not have been visible to the naked eye. That is the first myth that we have to destroy totally. In fact, the opposite is true. You should never wait for the cataract to get ripe because as the cataract matures, it gets hard and requires more energy to be taken out. Why is so much energy bad? It is because we are in a closes space in the eye and the energy is going to hit the iris (the colored part of the eye), the cornea (the clear front part of the eye) and damage the cells. We want to avoid that. The first myth has been dismissed.
Myth 2 The doctor has to decide when you need cataract surgery.
This is news from a by-era when the doctor has to see the cataract and he was comfortable with the surgery. Today, it is all about you. Even Medi-care, medical insurance and everybody says that. The best time to do cataract surgery is when you feel that the cataract are bothering you and interfering with your active lifestyle. For different people it might be different. If you are 52-years old, and you have cataract that cause a lot of glaring driving, it might be troublesome for you and you might an early intervention. If you are a librarian or a stay-at -home person who does not drive a lot, then those minor cataract might not cause a lot of difficulty to you. You get to decide not the doctor or the insurance.
Myths Cataract Surgery #3 You cannot go blind with cataracts.
It is important because many people are fearful of cataract surgery. They feel that the surgery will harm them and that cataracts are not going to cause any problem in the long run. That is wrong because the cataract is hardening and changing the lens and it gradually keeps cutting off the light until there is no light. You would be surprised to know that cataract is the most common preventable cause of blindness in the world. When the cataract hardens, it can lead to increased pressure and inflammation leading to blindness. The third myth that cataracts cannot make you go blind has been busted. You should do everything at all cost to avoid it.
Myths Cataract Surgery #4 The cataract has to be removed entirely.
This was the in the 70’s when the cataract had to be taken out in mass. That is not true and in fact, the opposite is true. We do not want to take out the entire cataract. We take out the cataract bag, clean out the contents and put in a new synthetic lens using the old lens as a support of the new lens. If you do not do that, the new lens would fall down and you do not want that. It is like taking your car for an engine oil change, out comes the old and in comes the new. You do not change the whole cask of the engine itself.
This myth is close to everybody. Today, it is not true. Today, cataract surgery is one of the simplest and easiest procedure to perform. We keep it pain free both by topical drops and specially formulated drops that are instilled inside your eye. We make sure that your eye is numb and is pain free. We do not have to numb your whole body.
Myth #6 You have to be put out during cataract surgery.
If we are operating on your eye, we do not have to numb the whole body. We can take care of the pain.
#7 Myth Cataract Surgery
Recovery is long and painful. That is not true. Why? It is because it is a simple surgery performed in a short period of time for about 7-10 minutes. You are pain free and not totally asleep. Many people can go and work or even drive the same day if we do not give them enough medications. That is not what we are recommending. It is not like before when it was six weeks, in a day or two, you can go back to your activities of daily living.
I hope this information is useful and we have destroyed these 7 myths for now and forever. Thank you and have a wonderful day.
Hi. How are you? This is doctor Khanna, laser man here once again, bringing you up to speed with the latest in eye technology. Today, we are going to talk about a very exciting and new topic; laser cataract surgery. There are a lot of myths about laser cataract surgery and we are going to bust them all. We are going to talk about 7 myths of laser cataract surgery, which has been found not to be true and we are going to go over it one-by-one.
Laser cataract surgery is safer the manual cataract surgery. Even doctors believe that but reports came out of a study that showed that it was not the case. Laser surgery is at best as good as manual cataract surgery but not safer. That is one myth, which has been busted not by me but by published and reviewed journal studies of Europe.
Laser cataract surgery is going to be free and covered by insurance. That is not true. Medical insurance has determined that if someone wants to upgrade to laser cataract surgery, they will have to pay extra.
Laser can perform all the steps of cataract surgery. I think that is one of the biggest myths out there, thinking that it is going to be a robotic surgery and robots are going to come and do everything. That is not true. Lasers do certain steps pf the procedure, mainly opening in the lens and sometimes cutting the lens. They cannot do all the steps. In fact, some steps are done better by hand.
Cataract wounds made by lasers are better than those made by diamond knives. The reverse is true, diamond knives can make better and more precise wounds than the current generation of lasers used in cataract surgery. It is very logical why this happens, because the laser will need to see where they have to act. They are seen by using ‘ocular coherence topography’. The wounds have to made at the junction between the clear part and the hazy part which is the cornea and sclera. It is sometimes not discreet for the machines and that is why human eyes can detect them better and make better wounds.
If we do laser cataract surgery, we would not have to wear glasses after the procedure. That is not true. Only ‘presbyopic implants in eye’, can free you from the bondage of contact lens and glasses after cataract surgery and not laser.
After cataract surgery, drops will not be needed. Again, that does not hold the light of day. You will need drops. Drop less surgeries is a different concept. After the laser cataract surgery, you might need more drops.
Laser cataract surgery might be less painful and faster by cataract surgery done by hand. I feel sorry but, we have to bust that one too. When we do laser cataract surgery, we have to apply something that would hold your eye while the laser moves around making the openings and cutting the lens up. That is held by negative suction pressure, which is painful and we have to give you medication for that. For that, we have to add another step, we have to do the part of the surgery done with laser first and then in the operative room, we have to do the rest of the surgery by hand. It increases the time that you would be in the operating theater.
I hope you have seen the truth about laser cataracts surgery. It is a good procedure but it is not recommended for all based on knowledge and published studies that we have. Thank you for listening to me. Have a wonderful day. Keep sending your questions here.
Up until recently, if you wanted to fix your presbyopia (age-related long-sightedness) you would need to get a Multifocal IOL (Intraocular Lens). The problem with a Multifocal IOL is that to be able to additionally improve your reading vision your distance vision would suffer. You would have to decide whether you would rather have better distance vision and still need reading glasses (Monofocal IOL), or if you would rather have slightly better distance and good reading vision (Multifocal IOL). You also had the option to get a Monofocal IOL in one eye and a Multifocal IOL in the other, so you could have at least one strong distance eye. Enter the Symfony IOL.
The Symfony IOL is the first and only extended range of vision IOL that corrects presbyopia. This means, that unlike the Monofocal IOL that only allows you to correct distance vision, or the Multifocal IOL that allows you to correct both but with a compromise in your distance vision, that you can now correct both without loss of quality. It also comes in a Non-Toric and Toric version for patients with astigmatism! Another added benefit of the Symfony IOL, which the Multifocal IOL had a problem with, is that there are no glares or halos with this lens, making your newly corrected vision even better!
The Symfony IOL is implanted during a routine cataract operation. Completed with minimum recovery time, most patients are able to go back to their normal lives within 24 hours. With a routine operation, minimal recovery time, and improved distance and reading vision without glares or halos, the Symfony IOL sounds like a great choice! If you agree and would like more information or would like to schedule a consultation call today 310 482 1240