To compare femtosecond LASIK (FH Lasik) with surface Ablation (SA) for correction of hyperopia and hyperopic astigmatism

In This prospective comparative ,randomized study patients with hyperopia and compound hyperopic astigmatism, were included. After randomization in 2 groups they underwent FH-Lasik or SA with Technolas 217P (Bausch &Lomb) and the data were corrected and analysis performand with at least 8 mo of follow up UCVA (BSCVA), subjective refraction,HOAs values of coma, trefoil, spherical aberration, 2nd astigmatism, total higher-order aberrations were measured using the zywave II aberrometer.

After 6 months, mean values for BDVA were 0.06 ±0.13 and 0.16±(logMAR) 0.14in the SA and FH LASIK groups, respectively ( P=0.022). UDVA of 20/25 or better was achieved in 25% of eyes undergoing SA and 11.1% of FH LASIK eyes No Significant differences were found between treatment groups in HOA or CDVA (P=0.835) after 6months. No eye in either group lost more than 4 lines of best spectacle-corrected visual acuity

According to current study, safety and efficacy of SA and FH LASIK are comparable . Under well-controlled surgical conditions, SA and FH- LASIK refractive surgeries for hyperopia and hyperopic astigmatisem achieve similar results in visual acuity, concidering induction of HOAs, and possible complications.