What is an ICL?

ICL stands for “ Implantable Collamer Lens”. They are also very commonly referred to as Phakic IOL’s

ICL are micro thin lenses implanted over the natural lens inside eye to correct spectacle power. It is similar to a contact lens placed in eye except that a contact lens is temporary and has to be put on daily basis whereas ICL in put inside the eye permanently. The vision with an ICL is better than that of a contact lens because the lens is a non moving lens and is better able to correct cylindrical power along with spherical power

ICL gives high definition vision and does not require creating corneal flap and corneal tissue removal as in LASIK, SMILE & other laser specs removal procedures. It also does not cause any corneal dryness as seen in LASIK, SMILE & others.

Dr. Sanjay Chaudhary is one of the pioneers of ICL technology in India and has been implanting ICL’s for more than 12 years. He is the highest volume ICL surgeon in India. He has been awarded with “Highest Number of ICL Implanted in India” for year 2014 (London),  2015 (Barcelona) & 2016 (Sweden). He has also demonstrated LIVE ICL surgeries at several conferences. He is a regular participant at all ICL International users meet and has made several presentations in these international conferences.

Over 6,00,000 ICL’s have been implanted worldwide over the last 16 years. ICL are the best option in specs power of -8 or more. In lower powers they are preferred when the cornea is thin, if you have dry eyes and Lasik is not advisable.
ICL is made in Switzerland and USA and the order for the lens is placed as per measurements of the eye. The lens is then received by courier in about two week’s time. ICL is of two types, ICL Spherical and ICL Toric. Spherical ICL lens corrects only spherical power of glasses. Toric ICL lens corrects cylinder along with spherical power of glasses.

Types of ICL

$99 /m




$99 /m




Latest News In ICL

Dr Chaudhary Receives “Highest Number Of ICL Implanted in India– 2016” at World ICL Meet, Sweden

Posted on December 8, 2016

Dr, Chaudhary was honoured with the “Highest Number of ICL Implanted in India – 2016” award at the World ICL meet at Malmo, Sweden for performing 1000 ICL implants successfu...

Dr Chaudhary Performs Live ICL Surgery At DOS Winter Conference, Delhi 2015

Posted on December 6, 2016

Dr Sanjay Chaudhary performed live ICL Surgery at Delhi Ophthalmic Society (DOS) Winter Eye Conference, November 2015. The Live surgery was performed at Eye7 Chaudhary Eye Centre, Laj...

Dr Chaudhary Receives “Highest Number Of ICL Implanted in India – 2014” Award At World ICL Meet, London 2014

Posted on December 2, 2016

Dr. Chaudhary was honored with the “Highest Number of ICL Implanted” award at the World ICL meet in Barcelona for performing 500 ICL surgeries.

Dr. Sanjay Chaudhary performs live ICL surgery at North Zone Ophthalmology Conference, 2016

Posted on November 28, 2016

Dr Chaudhary was invited to perform live ICL surgery at North Zone Ophthalmology Conference which took place in Dehradun city. The surgery was followed by a live discussion where Dr C...

Dr Chaudhary Performs Live ICL Surgery At DOS Annual Conference, Delhi 2015

Posted on November 28, 2016

Dr Sanjay Chaudhary performed live ICL Surgery at Delhi Ophthalmic Society (DOS) Annual Eye Conference, April 2015. The surgery was performed at Eye7 Chaudhary Eye Centre, Lajpat Naga...

Dr Chaudhary Receives “Highest Number Of ICL Implanted in India – 2015” Award At World ICL Meet, Barcelona, Spain 2015

Posted on November 27, 2016

Dr Chaudhary was honored with the “Highest Number of ICL Implanted” award at the World ICL meet at Barcelona for performing 500 ICL implants successfully.

Benefits of ICL


  • No dry eyes
  • High definition vision which is sharp and crisp
  • Excellent Night Vision
  • Preferred choice in  thin corneas
  • UV protection inbuilt in ICL
  • A typically quick, 15 minute procedure and most people are able to resume daily activities in just a few short days with clearer vision


One of the most common concerns people have about laser based correction is that the procedure permanently changes the shape of their eye by removing corneal tissue. The advantage of the ICL is that it can permanently correct your vision, yet no natural tissue is removed or reshaped in any way during the procedure. If for the unlikely reason you need or wish to remove your ICLs in the future, your doctor can accommodate you.


ICL has been approved in Europe since 1997 and in the U.S. since 2005. In that time, over 500,000 eyes have been implanted with ICLs by certified, specialized surgeons with study showing a 99% patient satisfaction rate


For people who value health and wellness the ICL surgery could be the choice for you. The collamer base of the lens material is 100% biocompatible, meaning it is designed to function in harmony with your body’s chemistry.


The ICL can give you the freedom to live a life uninhibited by the day-to-day lifestyle demands of glasses and contacts. Your favorite activities and new adventures are on the horizon in usually a few short days.

ICL Educational Videos

What is the biggest fear ICL patients have? – Dr. Sanjay Chaudhary Explains

Can I get both my eyes operated for ICL at the same time? – Dr. Sanjay Chaudhary Explains

What are the risks associated with an ICL procedure? – Dr. Sanjay Chaudhary Explains

Is the ICL visible to others? – Dr. Sanjay Chaudhary Explains

Is the ICL procedure painful? – Dr. Sanjay Chaudhary Explains

Is it possible that my body does not accept the ICL implant? – Dr. Sanjay Chaudhary Explains

When can I resume to routine activities after an ICL implant? – Dr. Sanjay Chaudhary Explains

What if my glasses prescription changes after the ICL is implanted? – Dr. Sanjay Chaudhary Explains

What is post operative care after ICL implant? – Dr. Sanjay Chaudhary Explains

Where is an ICL placed in eye? – Dr. Sanjay Chaudhary Explains

Is the correction with ICL permanent? – Dr. Sanjay Chaudhary Explains

What is the difference between Intra – Ocular Lens (IOL) and ICL? – Dr. Sanjay Chaudhary Explains

Can an ICL be removed from my eye? – Dr. Sanjay Chaudhary Explains

Will I be able feel ICL once its in place? – Dr. Sanjay Chaudhary Explains

How long does it take to implant ICL?Dr. Sanjay Chaudhary Explains

Who is a Candidate for ICL?Dr. Sanjay Chaudhary Explains

Patients speak about ICL surgery experience.

What is ICL?

Advantages of ICL

Latest in ICL – Aquaport

Am I a candidate for ICL?

To be a suitable candidate for ICL, you should be:

  • At least 18 years old
  • Your specs number should be stable for about a year – minor changes do not disqualify you
  • Ladies should not be pregnant or breast feeding
  • You should not have eye diseases
  • Controlled diabetes is not a contraindication.

Absolute indications for ICL:

  • Eye power more than -8 dioptres upto -18 dioptres
  • Cornea thinner than 450 microns
  • Cylinder power of the eye more than 3.5 diopters
  • Unhealthy cornea including Keratoconus
  • Dry eye situations
  • Any situation where Lasik is not a suitable option


All indications for Contoura Vision/Lasik/Smile are also indications of  ICL as it is considered to provide high definition vision and is not tampering with the cornea as in Contoura Vision/Lasik/Smile procedures.

What are the risks associated with ICL procedures?

ICLs are very very safe procedures. These procedures are also US -FDA approved, which means they have been given safety clearance for Human Eyes. However like any other surgical procedure it can have some complications which are extremely rare if a proper screening check is done prior to the procedure. Some of the risks include infection, increased intraocular pressure, and possibility of accidental damage to the crystalline lens during the procedure. Some patients may experience some discomfort during the healing process (like dry eyes, light sensitivity), but these effects are temporary. Your doctor will discuss with you the risks and benefits of the procedure during your consultation. Nobody in our surgical experience has ever lost sight due to this procedure.

What is EyePCL? How is it different from ICL?

There are other variants of ICL manufactured by other companies and a leading Indian brand manufactures a version called EyePCL.

At our centre we use only the US-FDA approved Staar Surgical ICL and not the Indian Version EyePCL.

What types of ICL are available today?

ICL’s  have changed over the last 10 years. And from a model called V4 it changed to a V4-2 and latest is V4-3 which is available in the markets around the world. It is also known as ICL with Centra flow and it insures natural free movement of the eye fluid around ICL making it highly compatible and friendly to eye tissues .ICL is of two types; ICL Spherical and ICL Toric. Spherical ICL lens corrects only spherical power of glasses. Toric ICL lens corrects cylinder along with spherical power of glasses. With toric ICL, astigmatism of upto 4 diopters can be corrected.

What happens during ICL screening?

An ICL has to fit perfectly in a space within the eye and therefore ICL size and parameters have to be customized to individual eye. A small size will make ICL will be loose and will make it float around. A large size will make it too tight and disturb adjoining areas. This is similar to custom fitted suite. Even the slightest variation can disturb to final outcomes.

ICL Screening is the most important step is the entire process. For an ICL to go within the eye, the eye should have a natural space for it. This space is called the Anterior Chamber Depth (ACD). Ideally the ACD should be 3.0 mm or more but anything more than 2.75 mm is acceptable for new generation of ICL.

Besides ACD other parameters to be checked are – Accurate spectacle power of the eye, open angles of eye, size of the cornea which is termed as white to white, the curvature of the cornea which is termed as Keratometry and the corneal thickness which is termed as Pachymetry.

Retina evaluation is a must and should be done by a retina specialist. This is because ICL are usually done is high spectacle powers called high myopia and the retina is weak in such eyes with associated retina breaks and holes. Such lesions run the risk of retina detachment and preventive management is important. The prevention is very simple and requires retina photo-coagulation which is a painless, non – touch, 5 minute procedure . It takes about 2-3 weeks for retina lesions to stabilize after which ICL can be implanted.

Can both eyes be operated same day?

At Eye7, we operate both eyes on same day. However, if required, one eye can be operated at a time by choice.

Does the procedure hurt?

Not Really. A slight pressure may be felt during the procedure. There is a possibility of some degree of discomfort or mild pain after the procedure for 3 to 4 hours, which is easily controlled by medication and analgesics. If discomfort persists, you should contact your eye doctor.

I’m planning to get ICL done, how many days leave should I apply to the office?

In most of the cases both the eyes can be operated the same day. However before the treatment one has to get a screening workup done which includes different types of investigations and takes about 2-3 hours . ICL sizing’s are calculated by eye specialists and the order is sent to Staar Surgical to Switzerland and USA. If a custom fit size is available, the lens is received in India within 2 weeks however if a new lens is to be manufactured it will take about 6 to 7 weeks.. After the procedure majority of the people can return to work after 2-3 days. Most of the routine work can be done after 7 days. Jobs that are more physically demanding and involve exposure to liquids or dust might require a more graduated return to full activities, but are best discussed with your surgeon.

Will I be totally free from spectacles?

95% of the people will be totally free from their spectacles. 5% will have mild variation from their zero targeted correction due to varying healing patterns in different individuals, but will have their dependency reduced on spectacles. After 3 to 6 months enhancement can be attempted to correct these individuals further. People over the age of 45 who opt for distance vision correction, may need reading glasses.

For how long will I have to put medications after ICL surgery?

Usually a patient is on medicated eye drops for 4 weeks.

Can I wear spectacles or contact lenses after ICL surgery?

If the need arises they can be used. Cosmetic contact lenses can be used three months after surgery after consulting your eye doctor.

Can I use eye makeup/ cosmetics after ICL surgery?

Eye makeup can usually be used after one week of treatment. However one should consult a doctor before for the same.

Will I ever get glasses after ICL treatment?

After ICL treatment, eye behaves like a normal eye. This means that you may require glasses for reading after 40 due to normal ageing process of eye.

Will this treatment have any effect when I undergo a Cataract Surgery later in life?

When you plan to undergo a cataract surgery later in life, one should inform the doctor about any previous procedures so that the treatment plan can be modified accordingly.

I wear contact lenses regularly; do I have to take any extra precautions?

Usually the contact lens wear has to be discontinued for 3 days before you come for ICL workup and Surgery. However such should be discussed with your doctor who can suggest you the precautions in advance.

Can it be removed from my eye?

The lens is designed to remain in place permanently; a qualified ophthalmologist can remove and/or replace the implant if required.

Is the ICL visible to others?

No. Since the lens is positioned behind the iris (the colored part of the eye), it is invisible to both you and observers.

Will I be able to feel ICL once it’s in place?

The ICL is designed to be completely unobtrusive after it is put in place. It stays in position by itself and does not interact with any of the eye’s structures.

What if my Vision changes after I receive the ICL?

One advantage of the ICL is that it offers treatment flexibility and it is completely reversible If there is any change is the vision, which is extremely rare, the ICL can easily be removed and replaced. If necessary, another procedure can be performed at any time. Patients can wear glasses or contact lenses as needed following treatment with the ICL. The implant does not treat presbyopia (difficulty with reading in people 40 and older), but you can use reading glasses as needed after receiving the ICL.

Where is the ICL placed in eye?

The ICL is placed just behind the black part of the eye – iris in front of the natural crystalline lens.

What is an ICL made of?

The ICL is made of Collamer, a highly biocompatible advanced lens material which contains a small amount of purified collagen. Collamer does not cause a reaction inside the eye and contains an ultraviolet blocker that provides protection to the eye.

Is it possible that my body doesn’t accept ICL?

This is an extremely rare possibility because ICL is made of collamer, which is a highly inert and a biocompatible material and has not caused any problem for last 20 years, so it is unlikely it will cause any problem in future.

Where can I get more information on ICL?

Visit official website of ICL


What is the difference between Intra Ocular lens (IOL) and ICL?

IOL is an artificial lens which is implanted after removal of natural lens usually in Cataract surgery. In ICL surgery, the natural lens is not removed, but the ICL is placed on top of the natural lens.


CONTOURA VISION, LASIK, SMILE & ICL are four most popular options available today for somebody looking for freedom from glasses.

In CONTOURA VISION / LASIK / SMILE  procedures, lasers are used to correct spectacle power. Depending on the type, it may involve one or two lasers. The procedure involves reshaping the curvature of cornea so that the light is properly focused at the back of the eye on the retina.

For a detailed description read about LASIK/Specs Removal

Below is an attempt to give a broad idea about these three procedures. Different outcomes may be experienced depending upon individual variations. The decision of chosing the best procedure rests with your eye doctor after detailed examination of your eye.

ICL Laser vision correction – Contoura Vision/Lasik/Smile
Quality of vision in low numbers Very good Very good
Quality of vision in high numbers Very good Slight Loss of contrast quality
Post procedure dryness Absent Present
Corneal weakening Absent Present
Halos and glare Rarely present May be present
Reversing to original status Possible Not possible
Range of correction More
upto 18 diopters
upto 8 diaptors (approx.)
Type of procedure Intraocular Extraocular
Cost More Less
Waiting time after declared fit 15 days No waiting time
Risk of cataract Extremely Rare Nil


ICL Toric
ICL Spherical


Dr. Sanjay Chaudhary

LASIK / Specs Removal - ICL - Cataract - Computer Vision

Dr Sanjay Chaudhary is the founder and director of the Eye7 group of eye hospitals.

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