Clinical outcomes after topography-guided FS-LASIK for myopia with nonastigmatic eyes.

Autor: Yuan, Yifei, Zhao, Xiaorui, Dong, Ruilan, Zhang, Ruiyu, Wang, Zizhen, Chen, Yueguo
Předmět:
Zdroj: BMC Ophthalmology; 8/5/2024, Vol. 24 Issue 1, p1-9, 9p
Abstrakt: Background: To analyze the clinical outcomes after topography-guided femtosecond laser–assisted laser in situ keratomileusis (FS-LASIK) with Phorcides Analytic Engine (PAE) algorithm or Custom-Q FS-LASIK for myopia with nonastigmatic eyes. Methods: In this retrospective study, a total of 90 eyes with myopia without manifest astigmatism (82 patients) were included. All surgeries were performed by topography-guided FS-LASIK planned with a PAE algorithm (42 eyes) or Custom-Q system (48 eyes). Refractive, visual outcomes and corneal aberrations were compared between the two groups. Results: At 6 months postoperatively, the postoperative uncorrected distance visual acuity (UDVA) was 20/20 or better in 42 eyes (100%) in the PAE compared with 44 eyes (92%) in Custom-Q (P =.120). The postoperative UDVA of 20/16 or better was measured in 92% of eyes in the PAE group and 81% of eyes in the Custom Q group (P =.320). Postoperative corrected distance visual acuity, manifest refractive spherical equivalent and refractive astigmatism were similar between the two groups (P >.05). The postoperative optical path difference (OPD) and Strehl ratio (SR) were significantly better in the PAE group compared with the Custom Q group. Conclusions: Topography-guided FS-LASIK with PAE algorithm or Custom Q demonstrated similar refractive efficacy and predictability. PAE for the patients with zero manifest astigmatism demonstrated better results in correcting corneal aberrations. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index