About Lasik !

 Please note that there are FEW types of refractive procedures - ( basic principle in all is to reshape the cornea to remove spectacles )

1 First generation  - PRK is a Type of Laser Vision Correction. Photorefractive keratectomy (PRK) is a procedure in which the surface of the cornea is reshaped using an excimer laser. This process removes only 5-10% of the thickness of the cornea.

2 Second generation -(Standard  LASIK, /Custom lasik ) and cust - in this , a controlled blade is used to create a flap to get access to  the cornea.  Then a laser reshapes  the corneal tissue correcting the refractive error .

- FEMTO LASIK /I LASIK - in this a highly precise flap is quickly created with a femto  second laser to get access to the cornea . Then second laser reshapes the corneal tissue correcting the refractive error . Advantage - painless , less flap complications,  more accurate , preferred in less corneal thickness.

Contura – Contoura Vision TopoGuided LASIK is a new technology designed to enhance the effects of LASIK. It corrects the vision based on the corneal topography (corneal curvature maps) as against the correction of vision in a standard LASIK surgery which is only based on glasses or contact lens prescription.
Contoura Vision TopoGuided LASIK involves the use of a separate diagnostic device called topolyser which provides measurement of 22,000 points on the cornea capturing the imperfections in both the curvature and the optics of the cornea. These topographic measurements are then combined with the patient’s eyeglass prescription and a customized treatment profile is created and programmed into the state of the art laser. The final laser ablation is performed by the WaveLight EX 500 Excimer laser system. Thus this technology works to optimize the corneal surface during LASIK procedure.

3 Third generation  ( latest) SMILE - in this a small lenticule of corneal tissue  is created inside the intact cornea without creating a flap with laser . Lenticule is removed with minimal disruption to cornea which corrects the shape and thus providing refractive error correction. Advantage - painless,  flapless ,  less chances of dry eye,  most advance,  faster healing and less after care , better postop biomechanics
,  FDA approved and is very safe to remove your spectacles.