Delhi Journal of Ophthalmology

A to Z of ReLEx SMILE: All you need to know

Sanjana Vatsa, Pallavi Dhawan, Shana Sood
Department of Cornea and Refractive Services, Dr. Agarwal’s Eye Hospital, Bangalore, India

Editor-in-Chief, Delhi Journal of Ophthalmology, Dr R.P.Centre, AIIMS.

Corresponding Author:

Sanjana Vatsa 
Department of Consultant, Cornea and Refractive Services
Dr. Agarwal’s Eye Hospital, Bangalore, India

Received: 23-DEC-2020 Accepted: 12-JAN-2021 Published Online: 05-OCT-2021

ReLEx SMILE (Refractive lenticule exchange - Small incision lenticule extraction) is a new generation of laser vision correction, performed using the Visumax femtosecond laser system (Carl Zeiss Meditec AG, Jena, Germany) for the correction of myopia and myopic astigmatism. It ensures greater biomechanical stability, lesser chances of dry eyes and predictable visual and refractive outcomes, making it the procedure of choice for myopic corrections. This article explains in detail regarding the pre-operative work up, steps of the surgical procedure, laser parameters, intra-operative complications such as suction loss, opaque bubble layer, dark spots, cap tear, lenticular adhesion and post-operative complications such as interface haze, interface debris, diffuse lamellar keratitis etc. and their management. The learning curve of SMILE being steeper than that of LASIK, well experienced surgeon and a well co-operative patient would ensure better surgical outcomes, minimising the complications. It also briefly explains about the options available for enhancement post SMILE.

Keywords :SMILE, Laser Refractive Procedure, Femtosecond Laser, Visumax, Myopia