Comparing the predictability, stability, efficacy, refractive outcome, contrast sensitivity and spherical aberrations in eyes undergoing SMILE and PRK: 1 year study
Session Details
Session Title: Presented Poster Session: Keratorefractive Surgery Results I
Venue: Poster Village: Pod 2
First Author: : K.Kudlu INDIA
Co Author(s): : V. Jain H. Vokuda S. Girish
Abstract Details
Purpose:
To study and compare the predictability, stability, efficacy, refractive outcome, contrast sensitivity and spherical aberrations in eyes undergoing SMILE and PRK over a one year follow-up period
Setting:
Prasad Netralaya ,Super speciality eye hospital ,Udupi ,Karanataka ,India
Methods:
This is a retrospective comparative study of 1 year duration. 50 eyes which underwent SMILE, 50 eyes which underwent PRK were selected based on inclusion and exclusion criteria.
Standard preoperative evaluation for all patients included Corneal Topography, Refraction, Anterior segment & retina evaluation, Intra-ocular pressure. Uncorrected visual acuity, Best corrected visual acuity, Spherical aberration and Contrast sensitivity were measured preoperatively followed by 1, 3, 6, 9 and 12 months post operatively.
Results:
96% of the eyes which underwent SMILE and 92% of the eyes which underwent PRK achieved postoperative refraction within +/-0.5D of the intended target refraction. No eyes in both the groups had any loss of visual acuity. Both procedures induced statistically significant spherical aberrations. But the difference between the 2 groups was not statistically significant. (p> 0.05). 100% of eyes in SMILE and PRK group were noted to have a stable post- operative refraction till the last follow-up. Contrast sensitivity was better in eyes which underwent SMILE comparing to PRK.
Conclusions:
Overall, both SMILE and PRK have shown excellent safety, efficacy and predictability for correction of myopia and myopic astigmatism. SMILE is better in terms of refractive accuracy and quality of vision.
Financial Disclosure:
None
