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Trifocal Lens

Trifocal Lenses or Trifocal IOLs are one of the types of cataract lenses.  These like the other lenses are implanted in the eye during your cataract surgery.  A cataract causes blurry vision because the lens inside your eye becomes opaque.  This natural lens which has not turned opaque is removed and replaced by artificial lenses or an IOLs.  This cataract surgery is also known as Phaco Surgery or laser eye surgery.  These lenses give you complete or almost complete freedom from glasses.  

The other types of IOLs are Monofocal IOLs, Multifocal IOL, EDOF IOLs and Toric IOLs.  IOL stands for intraocular lenses

What do Trifocal Lenses do ?

Trifocal lenses as the name suggests gives you three focal distances.  In other words you can see clearly at three distances.  These are 

  1. Distance vision
  2. Intermediate Vision
  3. Near or reading vision

Intermediate distances is a distance that you would most likely be using your computer at or using your handheld devices

A incoming light into the eye is broken up into 3 rays of light.  Each ray of light gives you clear vision for one distance depending on what you look at.

Why would you choose a Trifocal lens ?

As mentioned earlier there are various types of lenses.  Choosing the best intraocular lenses for you can be a little confusing.  However, one must rememeber that there is nothing like the best cataract lens.  A lens choice would depend on the lifestyle of the individual, the requirements and the personality.  

So lets say for eg you hardly use a computer then there may not be a need to select a trifocal lens.  In another situation lets say you love wearing glasses because you have worn them for all your life and will continue to do so after surgery, then again you probably should not choose a trifocal lens.  On the other hand lets say you are keen to become glass free after surgery, then a trifocal lens may be a good option for you.

Difference between Trifocal lenses and Progressive Lenses and Bifocal lenses that go in the glasses

During a cataract consultation patients sometimes say they dont want to choose a trifocal lens because they dont like their progressive pair of glasses and assume that a trifocal lens will be very similar as far as the experience is concerned.  Progressive glasses are also referred to as multifocal glasses by some and are those lenses through which a person can see for far and near but there is no line on the lens as seen in bifocal lenses.

Well, that is not true.  A trifocal lens design is very different from a progressive lens design.  A trifocal lens has these visible lines on them which are circular.  These circular lines are actually what gives the lens the trifocality.  

Trifocal lenses are also different from the traditional bifocal corrective lenses that again go in glasses.  Bifocal lenses also have a visible line and cause an image jump when a person switches from looking far to looking near.  The newer progressive lenses dont have the visible line or the image jump.  Trifocal lenses dont casue any image jump at all. 

Difference between Trifocal IOL and Multifocal lenses

Trifocal lenses as the name suggests gives you clear vision for 3 distances.  Multifocal lenses on the other hand give you clear vision for only two distances, near and far.  If you have a multifocal lens implanted in your eye and need to use a computer without glasses there is a possibility that you would have to move closer to the computer screen than you would like.

Difference between Trifocal and Monofocal Lenses

A monofocal lens gives you clear vison for only far.  If you want to see anything at near, lets say a phone or a menu, then you would have to wear glasses.  The Eyhance Monofocal intraocular lenses give you some near vision but you would still not be able to read small print clearly without glasses.

A trifocal IOL on the other hand will give you clear vision for far, intermediate and near.

What are the advantages of Trifocal IOLs

A trifocal lens once implanted gives glass free vision for almost 90-95% of all your activities.  It is thus obvious that the headache of wearing glasses and trying to see clearly through them is eliminated.  For those who play sports they dont have to worry about glasses sliding down the nose or falling of from their faces.  There are no issues with fogging of lenses specially these days with everyone wearing masks.

We believe that using these lenses gets rid of the headaches of wearing glasses and sometimes changing glasses and the quality of your daily life improves.

What are the disadvantages of Trifocal IOLs

As mentioned earlier Trifocal IOLs have these visible conentric lines on the lens.  It is these lines that give the lens its trifocality.  However, these lines also cause halos aroud the on coming headlights.  Thus if an individual does a lot of night driving or has an active social life in the evenings then maybe this lens is not a good option for you.

Who are getting these lenses implanted in their eyes now a days ?

At Eye Solutions we are routinely implanting trifocal lenses.  We have found in the recent past that younger individuals who are leading an active life in terms of work and sports form a vast majority of our patients who want to get rid of glasses.   By younger we mean below 55 years of age. They may have an early cataract or not have a cataract at all.  They however are still keen to get rid of glasses.  

We perform what is known as clear lens exchange or a refractive lens exchange.  Here a cataract surgery is performed and the natural lens of the eye is replaced with a trifocal lens.  The individuals becomes glass free and is able to continue to lead an active life not having to worry about wearing glasses.

What to remember if you are choosing this lens for your eyes ?

 A Trifocal Lens when implanted takes a few days to get adjusted to.  Suddenly you are able to see most of the world clearly without glasses.   It is important to remember to get the other eye surgery too within a week or 10 days.  In other words one must get bilateral implantation of a trifocal lens to avail the maximum benefit of these lenses.  The reason for this is that the eyes and vision centers in the brain get adjusted to the new lens quicker.  Also there is no confusion about focusing to see clearly.  This also ends up avoiding eye strain and improves vision quality overall.  

You should also know that just because one chooses a Trifocal lens it does not mean that you will never have to wear glasses.  Yes, you will not need glasses for 95% of all your activities.  If you are lucky then even for 100%.  Infact a vast majority of our patients dont need glasses after surgery.  But there is always a chance that you will need a small number for seeing very fine print for either distance vision or near vision.  This small number comes because of the healing of the eye.  Each eye is different and while the eye heals after surgery if the corneal shape get a bit altered so will the eye number or eye power.  The technical name for eye power is refractive error. 

When can I not implant a Trifocal IOL ?

Diabetes can also affect the eyes and cause diabetic eye disease.  It is also known as diabetic Retinopathy.  If someone has diabetic retinopathy then it would not be a good idea to choose a trifocal lens.  The reason for this is that the quality of vision after the surgery would be poor.  Thus even though the surgery goes of well and vision may also be good after surgery because the quality of vision is poor the patient may be very unhappy.

Age related macular degeneration or ARMD is another retinal disease when a trifocal lens should not be implanted.

Finally as mentioned earlier these lenses cause halos around the oncoming headlights.  These halos cause significant visual disturbances.  Thus if an individual is involved with night driving or leads an active social life in the evenings the trifocal lens may not be a good option for them. 

Which are the well known Trifocal IOL brands available

There are many companies that make trifocal lenses.  for the past few years even the Indian IOL manufactureres are making trifocal IOLs.

The more well known brands are Zeiss Trifocals lens and Synergy Trifocal lens.  Synergy is by Johnson & Johnson Vision.  

Majority of our patients who want a zeiss trifocal lens know beforehand that they want this lens implanted in their eyes.  It is but natural that after initial disucssion they ask us the zeiss cataract lens price in India.  The synergy lens being relatively new is known as well known as yet.  However, as your eye doctors, we inform all our patients about all the options available and pros and cons of each.

At Eye Solutions we have used lenses by both indian as well as foreign companies but majority of our patients are implanted with the zeiss or Synergy IOL.

Which is the best Trifocal lens brand ?

Synergy Trifocal IOL is one of the newest trifocal IOLs available in the market.  It is slight different from a traditional trifocal lens.  Here, you may want to read about EDOF lenses.  EDOF stands for extended depth of focus. They have combined an EDOF lens with a multifocal Lens and this is a very innovative technology. This lens gives you clear vision for far, intermediate and near just like a trifocal lens.  However, it also gives you clear vision for the entire range between near and intermediate and a little further.  This range of vision that this lens gives you improves quality of vision significantly and we believe that this is the best trifocal lens available in the market today. 

That being because the Syngery IOL is a relatively new IOL we have used many more of the Zeiss Trifocal IOls compared to the Synergy IOL and are extremely satisfied with the visual outcomes.  Patient satisfaction too is very high with both eyes premium trifocal lenses.  

What is the cost of Trifocal IOL Cataract surgery ?

Trifocal lenses are the most expensive lenses available in the market.  Naturally your total surgery cost would be highest if you were to choose a trifocal lens.  Indian trifocal lenses are cheaper than the foreign lenses.  But to give you an idea cost of a trifocal lens cataract surgery would range from 70000 to Rs 150000 per eye.  You can read more about cost of cataract surgery in Mumbai.  

The Zeiss cataract lens price in India is Rs 135000 per eye.  Please note that this price is not only the cost of the lens but your entire surgery cost.  If you would like to see the entire range of cataract lens prices please see cost of cataract surgery.  

How to choose which lens would be best suited for you ?

Choosing the best cataract lens could be confusing.  But its not really that bad.  At the outset one must know what they are looking for.  Most important is to discuss with your eye care provider to understand  their point of view and take their help in choosing a lens.  

You must understand every eye care professional wants you to become glass free after cataract surgery and would suggest a lens accordingly.