Comparison Between 80-Micron V/S 100-Micron Flap Femtosecond Lasik For Correction Of Myopia And Myopic Astigmatism: A Contralateral Eye Study
Published 2024 - 42nd Congress of the ESCRS
Reference: PO1137 | Type: Free paper | DOI: 10.82333/63rk-qp98
Authors: Hemant Jhajharia* 1 , Sudarshan Khokhar 2 , Deeksha Rani 2 , Aishwarya Rathod 2
1Ophthalmology,All India Institute of Medical Sciences,Delhi,India;MBBS,All India Institute of Medical Sciences,Delhi,India, 2Ophthalmology,All India Institute of Medical Sciences,Delhi,India
Purpose
To compare the safety, efficacy, and visual outcomes of 80 vs 100-micron LASIK
in the management of myopia and myopic astigmatism.
Setting
A tertiary care hospital in north India.
Methods
Patients with myopia and myopic astigmatism presenting for refractive correction
were included. The eligibility criteria were normal corneal topography, epithelial thickness
less than 60 microns, calculated percentage tissue ablation (with 100-micron flap) less than
40 per cent, and willingness to participate and follow up. Patients with glaucoma, cataract,
other visually disabling ocular pathologies and a history of past ocular surgery, were
excluded. 216 eyes of 108 patients were included. The prevalence of flap micro striae and
OBL was higher in the 80-micron group, while neither of these had any visual implications.
Results
The mean preoperative spherical equivalent in the 80-micron group and the 100-
micron group was -3.53 (1.81) and -3.69 (1.32) respectively (p=0.78). The safety and efficacy
of the treatment were 100% in both groups. The postoperative change in the higher-order
aberration profile was comparable in both groups (p=0.78). The percentage tissue ablation
was significantly lower in the 80-micron group (p= 0.002).
Conclusions
80-micron LASIK is an efficacious and safe alternative to 100-micron LASIK,
especially useful in patients with higher refractive error.