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 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.