Home About Login Current Archives Announcements Editorial Board
Submit Now For Authors Call for Submissions Statistics Contact
Home > Archives > Volume 20, No 7 (2022) > Article

DOI: 10.14704/nq.2022.20.7.NQ33155

Conventional versus Femtosecond Laser-assisted in situ keratomileusis in mild to moderate Myopia using Contoura vision Topography-Guided Ablation.

Ayat Mohamed El Alfy*, Dina Fouad Ghoneim, Ahmed Medhat Abdelsalam, Ibrahim Mohieldin Taher, Aziza Ahmed Hassan

Abstract

ontext: Refractive errors are an important cause of vision impairment. Topographic-guided ablation by femtosecond laser-assisted in-situ keratomileusis (FS-LASIK) can alleviate some of the limitations of Wavefrontguided LASIK. Aim: This study aimed to compare the efficacy and safety of FS-LASIK and conventional LASIK in myopia cases. Settings and Design Methods: This study was conducted in Cairo, Egypt, upon 100 individuals with 200 eyes, from Jan-2020 to Jan-2021. They are grouped into FS-LASIK group (n=100 eyes) and conventional LASIK (n=100 eyes). Methods and Material: The study used Allegro topolyzer Contoura. Statistical analysis used: Chi-square test and ANOVA Results and conclusion: At the baseline, there was no significant (p=0.324) difference in central corneal thickness between the FS-LASIK group 542.17±25.93 and conventional-LASIK group 545.64±23.62. They were comparable as regard K1 (p=0.994) 43.92±1.95 and 43.92±1.90, and in K2 (p=0.789) 44.89±4.54 and 44.71±4.64 in the FS-LASIK group and the conventional-LASIK group, respectively. There is no significant difference in vision in the preoperative, after one-month and after three-months (p-values > 0.05). In the second day postoperative, there was significant reduction of vision in conventional-LASIK group compared to FS-LASIK group (p<0.001). The proportion of coma and spherical HOAs in both groups were increased dramatically after one week and decreased gradually at one month and 3-months evaluations. The proportions of trefoil and sixth foil aberrations were decreased after the procedure. In conclusion, FS-LASIK using Contoura demonstrated good safety, efficacy, and predictability in treating myopia and myopic astigmatism in both mild and moderate cases.

Keywords

gout, pedicle graft, PRF, wound, acidity.

Full Text

PDF

References

?>