This procedure is the latest in Laser eye surgery technology. In this procedure, the VisuMax Femtosecond laser is used to create a precise disc of tissue in the patients cornea. Once the disc is created, the surgeon removes this disc of tissue from a tiny 2mm opening. This results in the reshaping of the central cornea and corrects the power. The flapless nature of this procedure allows the advantage of higher safety and stability as compared to conventional LASIK, as well as a quicker visual recovery.

Eye problems that can be treated with ReLEx SMILE

Treatment Myopia Astigmatism Hyperopia
Relex Smile Surgery

Benefits of ReLEx SMILE

Advanced Specialised Laser Technology

Performing ReLEx SMILE requires the The VISUMAX femtosecond platform. This laser machine is a pioneer in the field of laser eye surgery and is the only laser system in the world which is FDA approved for performing ReLEx SMILE. The VISUMAX platform uses a very gentle suction which is extremely comfortable for the patient.

Visumax Femtosecond Laser

Eye Problems That can be Treated with ReLEx SMILE



Before ReLEx SMILE

When you book your appointment at Sri Eye Care, we request you to please mention your interest in undergoing Laser Eye Surgery to our care co-ordinator. You should discontinue your contact lenses before your visit [1 week for soft contact lenses and 4 weeks if you wear Rigid lenses]. We would also request you to bring an attendant with you, along with a pair of sunglasses. This is because your eye doctor will dilate your pupils to do a complete evaluation of the eye, which is the first step in your journey towards spectacle-free vision. You will also not be able to drive yourself after your examination due to your dilated pupils.

Our specialists will check for stability of your glasses power which is the main pre-requisite before undergoing Laser eye surgery. Therefore we request you to bring a copy of your old glasses prescription or your old glasses so that we may understand the stability of your eye power.

Lasik Examination
Relex Smile Suction

During ReLEx SMILE

Few minutes prior to the surgery, you will be given some eye drops and medication to help you relax. You will be awake throughout the procedure. The surgeon will instil drops in your eyes to numb your eyes completely. Your eye will be positioned under the laser and your eyelids will be kept open. The surgeon uses a computer to adjust the laser for your particular prescription. You will need to keep looking straight or as the surgeon directs you throughout the procedure. Your cornea will be reshaped with the laser light . The process is completely painless, but you may feel some pressure on the eye during the suction phase of the laser.


You will have to rest for a bit. A temporary watering or an itching sensation on your eye is quite common. Immediately after the surgery blurry and hazy vision is also normal. As time passes by, your vision improves and will be restored within 24 hours. Follow your doctor's instructions and use all the drops as advised for the prescribed number of days and come for follow ups as advised by your surgeon. You will also have to use UV protection sunglasses for a while going outdoors.

After  Laser Eye Surgery

Frequently Asked Questions

Does laser eye surgery hurt? Logo

Laser Eye Surgery is usually painless, but you may experience a kind of pressure in your eyes during the procedure, but this may be temporary.

How long does laser eye surgery take? Logo

Laser eye surgery takes a maximum of 30 minutes, but in most cases it is done within 10-12 minutes

When can I go back to work after having laser eye surgery? Logo

If you have undergone ReLEx SMILE or LASIK, you can resume your work the next day after your procedure. With PRK/ASA it may need 5- 7days to resume your work. However, you may need to wait until your eyes become fully comfortable and clear. You are also advised to as your surgeon post-surgery before resuming your job.

Is laser eye surgery safe? Logo

With modern day laser technology, laser eye surgery is extremely safe. Our team of specialists always use the highest safety parameters and keep a high ceiling safety profile before advising Laser correction for all patients.

Should I keep reading glasses with laser eye surgery? Logo

See, the laser surgery aims to provide a 'permanent' solution to your eyes, but it has to be accepted that your eyes change with age, reading glasses are optional with the surgery. However, using them may be an added advantage.

When is Laser eye surgery procedure not recommended? Logo

Laser eye surgery is usually not recommended for people where the spectacle power has not stabilised. Laser eye surgery is not done for individuals below 18 years. An eye with keratoconus is a strict no-no for undergoing any kind of laser eye surgery. Also, if the corneal profile and thickness are not suitable, your surgeon may defer the procedure or offer any other alternate means of achieving spectacle free vision

What is SMILE Xtra or LASIK Xtra? Do I need this procedure instead of normal SMILE or LASIK? Logo

SMILE Xtra and LASIK Xtra are recently introduced procedures that offer an additional layer of protection for the cornea after surgeries. This process combines SMILE/LASIK procedure with Riboflavin assisted Corneal Collagen Cross Linking [C3R] procedure to aid in strengthening of the corneal layers. SMILE/LASIK Xtra procedure is not recommended for all patients undergoing laser eye surgery. It will only be recommended by our specialists only if your corneal profile is borderline or shows some indications of future thinning.

What is bladeless LASIK? Logo

Are there any advantages of ReLEx SMILE over conventional LASIK? Bladeless LASIK or Femto LASIK is an all-laser LASIK wherein even the creation of the flap is performed by femtosecond LASER. The thickness and accuracy of the flap depth is more precise with this method as compared to conventional LASIK procedure.

Is ReLEx SMILE the same as Bladeless/FemtoLASIK? Logo

While ReLEx SMILE is also an all laser procedure, it however does not need the creation of a corneal flap for correction of the power. Here a disc shaped tissue called as the “lenticule” is fashioned by the femtosecond layer which is extracted through a 2mm incision.

What is CONTOURA® vision? Do I need Contoura™ vision instead of LASIK? Logo

Contoura vision is an advanced type of LASIK laser surgery. Here, microscopic irregularities on the patient’s cornea are mapped on the corneal topographer. These irregularities are then transferred to the LASIK suite. At Sri Eye Care, we use the Alcon WAVELIGHT™ suite which automatically maps and corrects these irregularities while also correcting the power. Contoura™ vision is required only for patients who have significant irregularities on their cornea. If not a simple LASIK would suffice.

Should I choose ReLEx SMILE over LASIK for my eyes? Logo

Normally your specialist, after performing a thorough evaluation, would suggest the ideal procedure recommended for your eyes. However, if you are deemed to be suitable for both ReLEx SMILE as well as LASIK, you can take a conscious decision based on the relative advantages of SMILE over LASIK. The flapless nature of ReLEx SMILE makes healing of the incision faster (within 48 hours as compared to 5-7days with LASIK). Since a flap is created in LASIK, it causes a larger proportion of corneal nerves to be severed. These corneal nerves are important for tear production and hence patients experience dry eyes post-operatively. However, in SMILE since no flap is created, the post-operative dry eye is significantly lesser as compared to LASIK.

This advantage might be more relevant in people who work on computers for long hours who may be more prone to dry eyes. The flapless nature of this procedure also affords a higher safety profile for those who have an active lifestyle and play contact sports. Post LASIK there are minor chances of the flap being dislocated due to any injury. This risk is not there in SMILE. Although SMILE does have some advantages over LASIK, the visual recovery and accuracy of vision correction is equal in both procedures.