PURPOSE: Analysis of the femtosecond laser refractive
lens surgery corneal incision confi guration and corneal
higher-order aberration (HOA) effect from the fi rst postoperative
day.
METHODS: High-resolution anterior segment optical
coherence tomography was used to assess 20 eyes
undergoing femtosecond laser refractive lens surgery
with 2.2-mm minimal incision. The primary incision (triplanar)
actual length, cord length, surface angle, surface
irregularity, and regional pachymetry values and
the secondary incision (uni-planar) length, angle, surface
irregularity, and pachymetry values were analyzed.
Hartmann-Shack aberrometer was used to assess corneal
HOAs to correlate the effect. Assessment was done
preoperatively and 1 month postoperatively.
RESULTS: The actual length, cord length, and surface
angle means for the primary incision in the fi rst postoperative
day and month were 1.50 ± 0.1 and 1.47
± 0.2 mm (P = .5), 1.41 ± 0.1 and 1.42 ± 0.2 mm
(P = .8), and 27° ± 4° and 23° ± 5° (P = .07), respectively.
The length and surface angle for the secondary
incision in the fi rst postoperative day and month were
1.17 ± 0.01 and 1.04 ± 0.1 mm (P = .05) and 52°
± 3° and 42° ± 5° (P = .007). The regional pachymetry
values for the primary and secondary incisions were
signifi cantly increased in the fi rst postoperative day and
then signifi cantly decreased after 1 month. All irregularities
occurred in the posterior surface (endothelium): 2
cases of posterior gap (fi rst day) and 1 case of posterior
retraction (fi rst month). The HOAs had not signifi cantly
changed preoperatively and after 1 month.
CONCLUSIONS: The femtosecond laser refractive lens
surgery incision is stable and does not signifi cantly
change the HOA.