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LASIK & Refractive Surgery
  • What is LASIK ?

    Know what it is

  • What is Blade Free LASIK ?

    Know how

  • What after 40?

    Know what

LASIK & Refractive Surgery


Before you know what LASIK is, you need to understand essentially how the eye functions:

Our eye works just like a camera, with the front glass of our eye called corneal bending the light rays inwards and the light getting fine focussed with the help of a lens on the camera film called retina. Finally the fibres from the film/retina make a wire/ optic nerve that takes all the signals from the camera(eye) to the computer( brain). If the eyeball is longer or shorter than normal or the shape of cornea is deviant from normal, a person needs to wear glasses or contact lenses to help focus the light on the eye camera film (retina) (image)

We can’t change the length of the eyeball….but we can surely remove glasses by working on the cornea or on the lens.

The process by which the shape of cornea is remodelled so that you don’t need glasses any more is called LASIK.


Now cornea has 5 layers and to perform a spectacle removal surgery we need to expose the layer which when worked upon, will produce permanent results.


So If we remove the top skin and fire excimer laser it's called PRK

If we make a flap and then fire excimer laser it's called LASIK

And if we do not make any flap and remove a thin layer of cornea with specialised most advanced laser eye surgery system….it’s called SMILE (know more)

Now one size doesn’t fit all….let the years of experience of our refractive surgery pioneers guide you into a spectacle free future with an approach tailored just for you….

Type of laser Refractive surgery


About Lasik Eye Surgery

Laser-Assisted In Situ Keratomileusis, more popularly known by the name of LASIK Eye Surgery, is a procedure that corrects vision problems and altogether eliminates the necessity of spectacles or corrective lenses. This refractive surgery reshapes the clear round dome at the front of the eye (cornea) and bends the rays of light to focus on the retina instead of someplace else. The end result is a sharper and clearer vision.

LASIK surgery corrects the following refractive errors:

Nearsightedness (Myopia)

A condition where you are able to see the nearby objects clearly but not far away things. Both these cases consequent the light rays to focus on retina’s front rather than on it, blurring faraway vision.

Farsightedness (Hyperopia)

A condition where you are able to see the distant objects clearly, but not the nearby things.


Persistent blurred state of near and far away vision due to corneal uneven curves or flatness.


Also called the ‘Aging Eye’ condition, it refers to long-sightedness caused by the loss of elasticity of eye lens occurring generally in the middle & old age.

Centre for Sight has been providing the most advanced LASIK treatment options for the correction of all these refractive errors for many years now.

Understanding the evolution of LASIK

LASIK has been making waves in the medical world for almost 25 years. Earliest days witnessed the oncoming of Refractive Keratectomy (RK) in which manual cuts were performed on the eye to alter the shape of the cornea.

Blade-free LASIK Eye Surgery made its advent a decade ago concentrating on removing the corneal tissue in order to give it a new shape. A superior feat than its predecessor, this procedure used FEMTO laser eye surgery to create a corneal flap and guaranteed precise results. However, there was a minor setback. Despite being a bladeless procedure, doctors still had to create a corneal flap. Small Incision Lenticule Extraction (SMILE) eliminated that too.

What is Contoura & Personalised LASIK?

  • cornea-lensWavefront & Topography maps are used to guide treatments to improve the results of LASIK.
  • cornea-lensThis personalized treatment has been around for a decade and continues to be marketed in different avatars like "Contoura LASIK". The treatment, however, requires a flap & hence carries the same safety profile as LASIK.
  • cornea-lensIt also does not offer the minimally invasive flap free approach like SMILE.
  • cornea-lensPersonalised LASIK techniques like Contoura uses the excimer laser only unlike SMILE which works on the most advanced femtosecond laser platform.

Advantages of opting for SMILE procedure over the conventional LASIK treatment include

  • cornea-lens
    No Corneal Flap
    Meaning no risk of corneal flap displacement or any subsequent complications occurring.
  • cornea-lens
    Less Dry Eyes Small incision makes sure that there is almost no cutting of corneal nerves, resulting in the less dry eyes & improved corneal sensitivity.


  • cornea-lens
    Better Corneal
    There is minimal to almost no loss of corneal biomechanical strength.


  • cornea-lens
    Greater Precision
    & Stability
    SMILE uses a Femtosecond Laser and not an Excimer Laser, which means that the total energy introduced by the laser into the eye is 10-times lower, less inflammation, and has greater stability.


  • cornea-lens
    Fully Automated
    & Quick
    This process takes only 20-30 seconds per eye and has delivered outstanding visual results with more patients achieving 20/20 vision.


  • cornea-lens
    Enhanced Ability To See
    Clearly In Low Light
    Patients are able to see much better in dark, even at dusk or at night.


Best LASIK Doctors & Surgeon

At Centre for Sight, we have got the best LASIK & Refractive Specialists working with the state-of-the-art technology to provide the willing with a glass-free and clear vision. The LASIK & SMILE technology is available at our Delhi, Gurgaon, Hyderabad, Indore, Jaipur, Ahmedabad, Vadodara, Agra, Meerut, Moradabad hospitals.



A speculum is placed on the eye that prevents a person from blinking during the procedure.
Though watching TV will not harm the eyes, you will have difficulty for a few days as your eyes heal.
For about 3 days indoors and 3 weeks outdoors.
Most of the blurriness goes away by about the next day, though the clarity gradually increases over a couple of weeks.
No bed rest is required after the LASIK surgery.
Usually, the vision continues to stabilize for until about a month.
You should avoid rubbing the eye after LASIK surgery for a couple of weeks.
You should take a below-the-neck bath for a few days after the surgery.
Should be avoided until the eyes heal.
Yes, but your vision might be slightly blurred.
You can follow your normal sleep/wake pattern after LASIK Surgery.
If the laser removes too little/too much tissue from your eye, you won't get the clear vision results you were hoping for. This can be corrected by a repeat procedure after the eye heals completely.
No reported cases of blindness caused by LASIK exist. Nevertheless, when the correct aftercare protocol is not observed, the resulting complications (especially infections) can cause blindness. This is extremely rare but has happened. LASIK surgery itself does not cause blindness, and most cases of LASIK complications are avoidable by following aftercare procedures set forth by the surgeon.