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A retrospective comparison of enhancement rate between low myopic astigmatism and high myopic astigmatism in patients treated with Femtosecond LASIK
Author(s) -
CANADAS SUAREZ P,
IGLESIAS M,
GIMENEZ P,
CAS R,
TEUS M
Publication year - 2011
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2011.420.x
Subject(s) - lasik , astigmatism , keratomileusis , medicine , ophthalmology , visual acuity , femtosecond , surgery , laser , optics , physics
Purpose To analyze the retreatment rate between patients with low myopic astigmatism versus patients with high myopic astigmatism; all of them treated with Femtosecond Laser‐ Assisted Sub‐Bowman Keratomileusis ( FSBK ). Methods To analyze the retreatment rate between patients with low myopic astigmatism versus patients with high myopic astigmatism; all of them treated with Femtosecond Laser‐ Assisted Sub‐Bowman Keratomileusis ( FSBK ). Results The preoperative mean data were: Group I: Sphere was –3.98 2.09. Cylinder was –0.44 0.3 and best corrected visual acuity ( BSCVA ) was 1.15 0.1. Group II: Sphere was –3.66 2.54. Cylinder was –2.41 0.87 and BSCVA was 1.00 0.1. Three months after FSBK: The mean postoperative uncorrected visual acuity ( UCVA ) remained slightly higher in group I ( 1.08 0.2 ) than in group II ( 0.88 0.2 ) with p 0.001. The mean sphere was + 0.02 0.4 in group I and + 0.11 0.5 in group II ( p 0.009 ), and the mean cylinder was statistically significant superior ( p 0.0001 ) in group II ( ‐0.55 0.6 ) than in group I ( ‐0.11 0.2 ). This is correlated with the retreatment rate found, which was 26.9% ( 110 eyes) in group II and 6.48% ( 28 eyes ) in group I ( p 0.0001 ). Conclusion In patients with primary myopic astigmatism treated with FSBK, we found an statistically significant higher rate of enhancements in eyes with high myopic astigmatism ( 26.9 % ) than in eyes with low myopic astigmatism ( 6.48 % ).