Types of Cataract Surgery: MICS, Phaco and FLACS Explained

Types of Cataract Surgery: MICS, Phaco and FLACS Explained

If your eye doctor has told you that you need cataract surgery, you may have come across terms like Phaco, MICS and FLACS and felt a little lost. These are simply the names of different types of cataract surgery, and the differences between them are easier to understand than they sound. A cataract is a clouding of the eye’s natural lens, which slowly blurs your vision. Surgery removes that cloudy lens and replaces it with a clear artificial lens, so you can see clearly again.

In this guide, the cataract specialists at Krishna Netralaya, Gurgaon explain the main types of cataract surgery in plain language, so you can walk into your consultation understanding your options and feeling confident about the conversation with your surgeon.

How Cataract Surgery Works (the basics, in one minute)

Before looking at the types, it helps to understand what every cataract surgery has in common. Whatever the method, the core job is always the same: the surgeon removes your cloudy natural lens and puts a clear artificial lens, called an intraocular lens or IOL, in its place. That new lens stays in your eye permanently and does the focusing job the clouded lens could no longer do.

So what actually makes the types different? Two things, mainly: how the cloudy lens is broken up and removed, and how large the cut (incision) in the eye needs to be. Newer methods use smaller incisions and more precise tools, which generally means gentler surgery and smoother healing.

Cataract surgery is a day-care procedure. It is done under local anaesthesia, usually just numbing eye drops or a small injection around the eye, so you stay awake but feel no pain, and it typically takes under an hour. Most people go home the same day. The choice of lens (IOL) is a separate decision you make with your surgeon, and it is a topic in its own right.

What Are the Main Types of Cataract Surgery?

  1. Phacoemulsification (Phaco Surgery)

    What it is and how it is done
    Phacoemulsification, usually shortened to phaco, is the most common type of cataract surgery performed today. The surgeon makes a very small cut, around 2 to 3 mm, on the surface of the eye. Through this tiny opening, a fine probe is inserted that sends out gentle ultrasound waves. These waves break up the cloudy lens into tiny pieces, which are then gently suctioned out. Once the cloudy lens is removed, a folded clear artificial lens (IOL) is slipped through the same small cut and opened up in position. The cut is so small that it usually seals on its own and needs no stitches.

    Who it suits

    Phaco suits the large majority of people with cataracts, which is why it is the standard, go-to method at most eye hospitals. It works well for most everyday cataracts and gives quick, reliable results in experienced hands.

    Recovery and what to expect
    Because the incision is small, recovery is usually quick. Many people notice clearer vision within a few days, with the eye settling fully over a few weeks. You will use prescribed eye drops during healing and avoid rubbing the eye, heavy lifting and dusty places for a short while, as your surgeon advises.

  2. Micro-Incision Cataract Surgery (MICS)

     

    What it is and how it is done
    Micro-Incision Cataract Surgery, or MICS, is an advanced form of phaco that uses an even smaller incision, often under 2 mm. The principle is the same as phaco, ultrasound is used to break up and remove the cloudy lens, and a clear artificial lens is placed, but the specialised instruments are finer, so the cut can be made smaller still.

    Who it suits and the benefits of the smaller cut
    MICS suits people who are good candidates for phaco and can benefit from the smallest possible incision. A smaller cut can mean less disturbance to the eye, a lower chance of surgically induced astigmatism, and a stable, comfortable recovery. Whether MICS is right for you depends on your eye and your surgeon’s assessment, but it reflects the general direction of modern cataract surgery toward smaller, gentler incisions.

  3. Femtosecond Laser-Assisted Cataract Surgery (FLACS)

     

    What it is and how the laser helps
    Femtosecond Laser-Assisted Cataract Surgery, or FLACS, is the newest and most advanced option. It uses a precise laser to perform some of the steps the surgeon would otherwise do by hand, such as making the incision, opening the front of the lens capsule, and softening the cloudy lens so it is easier to remove. Guided by detailed scans of your eye, the laser carries out these steps with a high degree of precision. The surgeon then removes the softened lens and places the artificial lens, much as in phaco.

    Who it suits
    FLACS can be helpful in selected cases, for example certain complex cataracts, or where the surgeon wants the added precision of laser-assisted steps. It is the most technologically advanced choice, but it is not automatically “better” for everyone, and it is not needed for every cataract. Your surgeon will tell you whether the laser-assisted approach offers a real advantage for your particular eye.

Phaco vs MICS vs FLACS: A Quick Comparison

Here is a simple side-by-side look at the three modern types. Remember that the right choice depends on your eye and your surgeon’s advice, not on the name alone.

 

Phaco

MICS

FLACS

Incision size

Small (about 2 to 3 mm)

Smallest (often under 2 mm)

Small, made by laser

How the lens is removed

Ultrasound breaks it up

Ultrasound, finer instruments

Laser softens it, then removed

Stitches needed

Usually none

Usually none

Usually none

Recovery

Quick, vision clears over days to weeks

Quick, comfortable

Quick, vision clears over days to weeks

Best suited for

Most everyday cataracts

Those who benefit from the smallest cut

Selected or complex cases needing laser precision

Note: the figures above are general. Your surgeon will confirm what applies to your eye.

A Quick Word on Older Methods (SICS, ECCE, ICCE)

You may also hear about older surgical methods. They are worth knowing about so you understand the full picture, though the three modern types above are what most patients are offered today.

  • SICS (Small-Incision Cataract Surgery): a manual technique with a slightly larger, self-sealing incision. It does not use ultrasound or laser, which makes it cost-effective, and it remains widely used across India, particularly for certain mature or hard cataracts.
  • ECCE (Extracapsular Cataract Extraction): an older method using a larger incision to remove the cloudy lens in one piece. It is rarely used now that smaller-incision techniques are available.
  • ICCE (Intracapsular Cataract Extraction): the oldest technique, where the lens is removed along with its surrounding capsule. It is almost never used today except in very specific situations.

 

The modern methods grew out of these older ones. What matters is that your surgeon chooses the technique best suited to your eye, not simply the newest name.

Which Type of Cataract Surgery Is Best?

Quick answer

There is no single “best” type of cataract surgery for everyone. The right choice depends on the hardness of your cataract, the overall health of your eye, and your surgeon’s assessment. Phaco is the common, reliable choice for most people, while MICS and FLACS offer a smaller incision or laser precision in suitable cases.

It is natural to want to know which type is the best, but the honest answer is that it depends on your eye. Phaco is the trusted workhorse that suits most people. MICS offers the smallest incision for those who benefit from it. FLACS adds laser precision that can help in selected cases. A more advanced or newer method is not automatically the right one for your situation, and it is rarely about choosing by name.

The best approach is a proper eye examination and an honest discussion with your surgeon. At Krishna Netralaya in Gurgaon, Dr. Aditi Agarwal and the cataract team assess your eye in detail and recommend the technique that genuinely suits you, rather than a one-size-fits-all answer.

Want to know which type of cataract surgery is right for your eyes? Book a consultation at Krishna Netralaya, Gurgaon. 

Cataract Care at Krishna Netralaya, Gurgaon

Krishna Netralaya is a dedicated eye care centre in Gurgaon, with locations in Sector 48 and Sector 90, serving patients across Gurgaon and the wider Delhi NCR region. The cataract team, led by specialists including Dr. Aditi Agarwal, offers modern cataract surgery and guides you through choosing the right technique and lens for your eyes. If cataracts are affecting your daily life, a simple assessment is the first step toward clearer vision.

 

Frequently Asked Questions

That is decided after an eye examination. Your surgeon considers the hardness of your cataract, the health of your eye and your vision needs, then recommends the technique that suits you best. Booking a consultation is the way to get a clear, personalised answer.

Neither is better for everyone. Phaco is the reliable standard that suits most cataracts, while FLACS adds laser precision that can help in selected or more complex cases. The right choice depends on your eye, and your surgeon will advise which offers a real advantage for you.

MICS is an advanced form of phaco that uses an even smaller incision. For suitable patients this can mean a gentler, stable recovery, but it is not necessary for everyone. Your surgeon decides whether the smaller-incision approach benefits your particular eye.

With the modern small-incision methods, many people notice clearer vision within a few days, and the eye settles fully over a few weeks. You use prescribed eye drops and avoid rubbing the eye, heavy lifting and dusty places for a short while, as advised by your surgeon.

With the modern small-incision methods, many people notice clearer vision within a few days, and the eye settles fully over a few weeks. You use prescribed eye drops and avoid rubbing the eye, heavy lifting and dusty places for a short while, as advised by your surgeon.

That is decided after an eye examination. Your surgeon considers the hardness of your cataract, the health of your eye and your vision needs, then recommends the technique that suits you best. Booking a consultation is the way to get a clear, personalised answer.

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