Corneal aberrations and objective visual quality after hyperopic laser in situ keratomileusis using the Esiris excimer laser

Abstract

Hyperopic LASIK using the Esiris excimer laser for the correction of 2nd-order aberrations was safe and effective. Ocular and corneal HOAs increased significantly postoperatively.

Refractive lens exchange with spherical diffractive intraocular lens implantation after hyperopic laser in situ keratomileusis

“…23,[28][29][30][31][32] Our results agree with those in previous studies. The increase in corneal HOAs and the induction of negative spherical aberration is caused by the hyperopic ablation, during which the excimer laser ablates a ring of tissue in the midperipheral zone of the corneal stroma.…”

“…The increase in corneal HOAs and the induction of negative spherical aberration is caused by the hyperopic ablation, during which the excimer laser ablates a ring of tissue in the midperipheral zone of the corneal stroma. 23,[28][29][30][31][32] This changes Table 2. Root mean square of corneal total HOA (3rd to 6th orders) and Zernike coefficients Z(4,0), Z(3,1), and Z(3,À1) with 3.0 mm and 6.0 mm pupil.…”

One-year results of excimer laser in situ keratomileusis for hyperopia

“…However, they improved over time, as did visual ability. Recent studies 31,32 suggest that increased higher-order aberrations after hyperopic LASIK are the cause of persistent night phenomena.…”

Wavefront-guided customized corneal ablation

“…There is no published study comparing WFG customized ablation based upon the total ocular wavefront aberration profile (traditional WFG) with the ablation profile based solely upon the 'corneal' wavefront aberration profile. Preliminary results with corneal WFG treatments appear promising for myopia, hyperopia, and enhancements [47][48][49][50][51].…”