Novel Shape, Energy And Spots: Outcomes With A New Lenticule Extraction Platform

To analyze refractive outcomes, contrast sensitivity, aberrations and tear film metrics using the ELITA Femtosecond platform for lenticule extraction (Johnson & Johnson, Inc) in the treatment of myopia.

Tertairy Eye care cetre in North India

50 eyes of 25 patients who underwent Lenticule extraction using the ELITA platform (Johnson & Johnson) were included in this prospective interventional study. The Pentacam HR (Oculus Optikgeräte GmbH, Wetzlar, Germany) and itrace (Tracey Technologies Corp., Houston, TX, USA) were used to measure the corneal and total aberrations. Tear film metrics were measured using the Keratograph (Oculus Optikgeräte GmbH, Wetzlar, Germany)and Lipiview device (TearScience Inc., Morrisville, NC, USA) .Refractive visual outcomes were also studied at 1 month and 3 months post surgery.

Lenticule Extraction with the ELITA femtosecond laser Platform was found to be accurate, safe and effective. The total root mean square (RMS) and RMS of lower order aberrations did not show significant change after the procedure (P =0.65). None of the study subjects lost lines of Corrected Distance visual Acuity. 96 % eyes attained a UDVA of 20/20 or better. 90 percent eyes were within 1 D of targeted spherical and cylindrical correction. There was no significant change in MTF (P=0.23) demonstrating good preservation of contrast sensitivity. Non invasive BUT and Lipid layer thickness did not show significant deterioration post procedure. No adverse effect on the ocular surface was noted

Lenticule Extraction with the ELITA femtosecond laser Platform was found to be accurate, safe and effective with no significant deterioration in quality of vision as well as tear film metrics.